commit a67e150d0fe47fc90eb48fbba2428578d897c520
Author: Daniel Ledda <daniel.ledda@stock3.com>
Date:   Thu Dec 25 14:05:36 2025 +0100

    update

diff --git a/.clangd b/.clangd
new file mode 100644
index 0000000..65215ff
--- /dev/null
+++ b/.clangd
@@ -0,0 +1,5 @@
+CompileFlags:
+  Add:
+    - -std=c99
+    - -xc
+    - -DOS_LINUX
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..06e6a8e
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "djstdlib"]
+	path = djstdlib
+	url = https://git.djledda.net/Ledda/djstdlib.git
diff --git a/app.c b/app.c
new file mode 100644
index 0000000..d5b5c95
--- /dev/null
+++ b/app.c
@@ -0,0 +1 @@
+#include "./day3.c"
diff --git a/build b/build
new file mode 100755
index 0000000..fb7fa2f
--- /dev/null
+++ b/build
@@ -0,0 +1,7 @@
+#!/bin/bash
+
+clang -g -g3 -lm -DOS_LINUX=1 -DENABLE_ASSERT=1 ./app.c -o ./target/app
+
+if [[ $1 == "run" ]] then
+    ./target/app
+fi
diff --git a/day1-input b/day1-input
new file mode 100644
index 0000000..2de2b86
--- /dev/null
+++ b/day1-input
@@ -0,0 +1,4543 @@
+R20
+R10
+L11
+R45
+R13
+R32
+R46
+L20
+L1
+L26
+L33
+L6
+L34
+R50
+L41
+L8
+R16
+L20
+L39
+R40
+R30
+R47
+R20
+L44
+R16
+L1
+R50
+L23
+R32
+L2
+L1
+L10
+L28
+R13
+R46
+R39
+L17
+R44
+R24
+R32
+R18
+L41
+R11
+L48
+R7
+R1
+L21
+R37
+L43
+L71
+L50
+R84
+L36
+R66
+L64
+L5
+R34
+R32
+L61
+L14
+R83
+L69
+R94
+R17
+L11
+L63
+L37
+L25
+R70
+R48
+L1
+R5
+R29
+R87
+L49
+L96
+R88
+L56
+L76
+R37
+L73
+R49
+L93
+R56
+R79
+L79
+R85
+L79
+R70
+R24
+R38
+L88
+R46
+R76
+L72
+R64
+R83
+R53
+L36
+R38
+R41
+L60
+L234
+L35
+R948
+L176
+L86
+R97
+L52
+L31
+R65
+L513
+R234
+L47
+L84
+R38
+R93
+R43
+L43
+R36
+R64
+R47
+L84
+R637
+L39
+L528
+L48
+R54
+R21
+L431
+R371
+R92
+L601
+R65
+R44
+L401
+R57
+L320
+L924
+R88
+L2
+R2
+R52
+R45
+R12
+L9
+R26
+R937
+R74
+R63
+R44
+L86
+R342
+R72
+R438
+R41
+R20
+L71
+L64
+R44
+R27
+R10
+R83
+L96
+L501
+L303
+R83
+L83
+R57
+L89
+R60
+L10
+L18
+L78
+R23
+L819
+R18
+L68
+R93
+L65
+L22
+R64
+L346
+R74
+L97
+L77
+R90
+R99
+L89
+L358
+L24
+L18
+R19
+R902
+R18
+R42
+L16
+L67
+R7
+L61
+L44
+R58
+R56
+R86
+R77
+L197
+L48
+R276
+L82
+L65
+L45
+L44
+R12
+R835
+L719
+R47
+L35
+R988
+R6
+L92
+L196
+R82
+R36
+R95
+R69
+L52
+L17
+L531
+R13
+R87
+L69
+L31
+L17
+L66
+R83
+R10
+R85
+R5
+R543
+L1
+R55
+L646
+L47
+L50
+R7
+L719
+R673
+R85
+R399
+L13
+R86
+L60
+R788
+L605
+R5
+R872
+R24
+R54
+R86
+L47
+R74
+L63
+L72
+L28
+L579
+R81
+R98
+R79
+L1
+R722
+L48
+R6
+R41
+L99
+L26
+R26
+R64
+R50
+R88
+R520
+R57
+L779
+R83
+L71
+R399
+R89
+R92
+R68
+R940
+L44
+R44
+L151
+R15
+R70
+R566
+R79
+R6
+L85
+R958
+R79
+L54
+L42
+L159
+R52
+L93
+R50
+R48
+R83
+R78
+L36
+R36
+L77
+R77
+R24
+L61
+L12
+L19
+L232
+R36
+L36
+R12
+L85
+L27
+R65
+L65
+L16
+L51
+R67
+L78
+L87
+R71
+R94
+L217
+R11
+R779
+L98
+L68
+R14
+R16
+L95
+L42
+R80
+L830
+R50
+L51
+R51
+R93
+L438
+L783
+L28
+L44
+L64
+L45
+R809
+L26
+L274
+L56
+R97
+L88
+R75
+R4
+R3
+L27
+L12
+R4
+R41
+R8
+L46
+R85
+L888
+R47
+L8
+R824
+L67
+R58
+L177
+R723
+R44
+R56
+R70
+R30
+R97
+R43
+L39
+R99
+L78
+L196
+L87
+L39
+R42
+L528
+R86
+R20
+L920
+R916
+L16
+L19
+L92
+L17
+R38
+R43
+R90
+L57
+L58
+R72
+L54
+L26
+L9
+R66
+R41
+R74
+L86
+L6
+L39
+L72
+L5
+R17
+R99
+L3
+L50
+R7
+L56
+R2
+R15
+R18
+L60
+L73
+L980
+L20
+L69
+L31
+L998
+L16
+R29
+L15
+L136
+L71
+R7
+R59
+L19
+L40
+L56
+R60
+L97
+R93
+R87
+L587
+L1
+R1
+R99
+R5
+L4
+L89
+L70
+L62
+L559
+L50
+R88
+L58
+R23
+R77
+R406
+R22
+L28
+L455
+R55
+R15
+R43
+R62
+R686
+L6
+R19
+L19
+R44
+R34
+R40
+L348
+L294
+R92
+L342
+L92
+R918
+R48
+L24
+L76
+L865
+L59
+R13
+L89
+L6
+L79
+L105
+L71
+L39
+R226
+R274
+L35
+R61
+R33
+R5
+L64
+L88
+R24
+L731
+R53
+L58
+L87
+L85
+R72
+R67
+R4
+R86
+L288
+R721
+R87
+L77
+R88
+R14
+R98
+L744
+L656
+R81
+L81
+L93
+L974
+L25
+L453
+R31
+L14
+L72
+R43
+R45
+R18
+L881
+L25
+R82
+L184
+R99
+L181
+L55
+R39
+R80
+R320
+R686
+R6
+R64
+R483
+R22
+R19
+R88
+R73
+L33
+L8
+R89
+L89
+R13
+R32
+L45
+L72
+L93
+L535
+R36
+R24
+R47
+R593
+R25
+L72
+R447
+R17
+L17
+R23
+R1
+R53
+R23
+L75
+L95
+L13
+R5
+R18
+L13
+L6
+L21
+R64
+L304
+L160
+L509
+R509
+L98
+R579
+R19
+R76
+L7
+R331
+L99
+L1
+L222
+R72
+R50
+L8
+L88
+R96
+L84
+R84
+R690
+R37
+L27
+R452
+R80
+L43
+L85
+R96
+R10
+R33
+R57
+L70
+L30
+R19
+L183
+R52
+L349
+R888
+L27
+L821
+L18
+L66
+L95
+R23
+R977
+L18
+L811
+R47
+L18
+L76
+L24
+L78
+L22
+L29
+R29
+L42
+R22
+R96
+L76
+L47
+R47
+R128
+L28
+L56
+R56
+L82
+L48
+L50
+R88
+L916
+L9
+R1
+L32
+R48
+L356
+L85
+R51
+L70
+R24
+L98
+R34
+R124
+L58
+R60
+R526
+R948
+L90
+L68
+L42
+R972
+R28
+R23
+R77
+L83
+L637
+R52
+L132
+R57
+L957
+L88
+R88
+L179
+L921
+R10
+R90
+L12
+L88
+R2
+R98
+R956
+R44
+L4
+R59
+L55
+R89
+L51
+L41
+R54
+R55
+L6
+L27
+R27
+L53
+L47
+L98
+L228
+R35
+R11
+R35
+R33
+R12
+R39
+L238
+L1
+L94
+R51
+R543
+R15
+L937
+R92
+R20
+L12
+R21
+R87
+R14
+R45
+L745
+R70
+R59
+L52
+R31
+L8
+L7
+L898
+L78
+R83
+L6
+L88
+L260
+L413
+L76
+L98
+L359
+R19
+L51
+L68
+R76
+R424
+L23
+R75
+L249
+L3
+R63
+L263
+L21
+R21
+R75
+L915
+L60
+R147
+L63
+R48
+L95
+L931
+R94
+L86
+R32
+L46
+L26
+R43
+R813
+L30
+R71
+L70
+L1
+L51
+R16
+L855
+L360
+R60
+L26
+L8
+L559
+R183
+L21
+L72
+L7
+L195
+L72
+R67
+L63
+R63
+L7
+L66
+L727
+R55
+L66
+L889
+L68
+R25
+L321
+R7
+R48
+R59
+R60
+L72
+R19
+L57
+R59
+L56
+L28
+L186
+R11
+L53
+L342
+L50
+R4
+R41
+R2
+L8
+R906
+R6
+R42
+R60
+L90
+R82
+R24
+L60
+L64
+R50
+L50
+L3
+R85
+R68
+L850
+R74
+L93
+L614
+R55
+L22
+L52
+L2
+R6
+L201
+L18
+R81
+L514
+R61
+L77
+L955
+R71
+R47
+R78
+R375
+L760
+R60
+R54
+R395
+L55
+L94
+R794
+L94
+R47
+R44
+R402
+L42
+R564
+R85
+L18
+L99
+R12
+R63
+R7
+L65
+R83
+L36
+L47
+R267
+L58
+L9
+L97
+R41
+L44
+L55
+R55
+L58
+R6
+L61
+L187
+R66
+R41
+L64
+L88
+R5
+R63
+R42
+R509
+R77
+R540
+R98
+L51
+R99
+R63
+L62
+L66
+R28
+L96
+R56
+L20
+L40
+R17
+L282
+R65
+L8
+R8
+L15
+R15
+R38
+R84
+R78
+R73
+R27
+R32
+R59
+L10
+R19
+R49
+R51
+R89
+L55
+L65
+R76
+L6
+R11
+R50
+R99
+L36
+R37
+L7
+L614
+L25
+R31
+L585
+R56
+R36
+L92
+L56
+L383
+L79
+R55
+R63
+L52
+L748
+L41
+R860
+R82
+L98
+R897
+R75
+R26
+R1
+L81
+R17
+R760
+R31
+R9
+R62
+R43
+R43
+L82
+R96
+R3
+R76
+L79
+R87
+L334
+R84
+R14
+R30
+L81
+R2
+L788
+R86
+R74
+R26
+L941
+L4
+L55
+R8
+L478
+R20
+R83
+R19
+R48
+R69
+L488
+L44
+R55
+L92
+L78
+L75
+L47
+L95
+R62
+L234
+R67
+R70
+L35
+L40
+L13
+L32
+L950
+R59
+R62
+R275
+R4
+R672
+R93
+L6
+R23
+L382
+L278
+R110
+R68
+R35
+R43
+R96
+R604
+R408
+R14
+R108
+R33
+R59
+L19
+R19
+R85
+R24
+R15
+R14
+R62
+L49
+R83
+L551
+R17
+L4
+L63
+R38
+R95
+R34
+R59
+L695
+R636
+R19
+L98
+L30
+L691
+L147
+R8
+R9
+R732
+L2
+L47
+L53
+L64
+L36
+R24
+R40
+R99
+R27
+R410
+R83
+R14
+L524
+R27
+R72
+L64
+R92
+R69
+R323
+R49
+R56
+R3
+L54
+L81
+R82
+L47
+R28
+R96
+L6
+L653
+L36
+R413
+L19
+R15
+L352
+L26
+L63
+R622
+R13
+L51
+L81
+L68
+L32
+L55
+R55
+L98
+R49
+L54
+R48
+R46
+R9
+L34
+L15
+L19
+R273
+R695
+R43
+R492
+R38
+L473
+L13
+L89
+L83
+L5
+R90
+R68
+L706
+R106
+R8
+R84
+R30
+L190
+R91
+L55
+R64
+R85
+L85
+L57
+L17
+R74
+L82
+R82
+R826
+L37
+L32
+L36
+L66
+L21
+R82
+L16
+L27
+R77
+R46
+L989
+R9
+L63
+R47
+L89
+L76
+L740
+L49
+L46
+L52
+R86
+R8
+L85
+L27
+L430
+R40
+L40
+R34
+L34
+L89
+L41
+R98
+R32
+R31
+L13
+R553
+L71
+R20
+L948
+R28
+L86
+R186
+R5
+L5
+R96
+R59
+L55
+L32
+R26
+L70
+L24
+L677
+L244
+R13
+L92
+L999
+L97
+R96
+L606
+R6
+R4
+L4
+R47
+L30
+R83
+L141
+R947
+L78
+L913
+L15
+R68
+R7
+L75
+L18
+L82
+R15
+L73
+L42
+L13
+L684
+R97
+R47
+R53
+R24
+R38
+R23
+L51
+R39
+L73
+R35
+R22
+R14
+L71
+L47
+R58
+L30
+L81
+R28
+R731
+L27
+L38
+R6
+R96
+L51
+R55
+R65
+L49
+L1
+L95
+L534
+L86
+L40
+L42
+L70
+R50
+L98
+L59
+L95
+L35
+L9
+R16
+R682
+L997
+R218
+R530
+L48
+L551
+R48
+L43
+R43
+L80
+L792
+R29
+L22
+L82
+L76
+L52
+R75
+L29
+R71
+R593
+L39
+L596
+R71
+R89
+L27
+L33
+L77
+R59
+L76
+R67
+L426
+L389
+R90
+R74
+L22
+L49
+R101
+L52
+R34
+L69
+L13
+R92
+R810
+R688
+R58
+R614
+L14
+R77
+L47
+R70
+L40
+R840
+R91
+R54
+R14
+L258
+R99
+R84
+R67
+R62
+L64
+R48
+L197
+L20
+L74
+R74
+L880
+R10
+R55
+R35
+R68
+L774
+L44
+R875
+R63
+R807
+R13
+R92
+L392
+L74
+L34
+L66
+R44
+R120
+R802
+L29
+R6
+R23
+L492
+L8
+R83
+R80
+L5
+R42
+R92
+R77
+R24
+R77
+L2
+R32
+L12
+L88
+R97
+L85
+R88
+R57
+L957
+L68
+L40
+R56
+R452
+R47
+L47
+L610
+L90
+L92
+L808
+L62
+R94
+L20
+L68
+L17
+L177
+R563
+L13
+L89
+R71
+L282
+L41
+R548
+R87
+R26
+L92
+R695
+R67
+L10
+R20
+L81
+R37
+R44
+R317
+R83
+R39
+R168
+R93
+R89
+L26
+R19
+L19
+L44
+L19
+R227
+R30
+L79
+R5
+L83
+R9
+L19
+L90
+R525
+L42
+R65
+R87
+L35
+L68
+L119
+L53
+R40
+L47
+L453
+L71
+L29
+R1
+R80
+L25
+R9
+R24
+L89
+R12
+R88
+R44
+L44
+L36
+R80
+R32
+R24
+R86
+R6
+R11
+L66
+R63
+L110
+L90
+L69
+R369
+R49
+R65
+R82
+L96
+R85
+R15
+L10
+R210
+L355
+R55
+R51
+R31
+R30
+L64
+R752
+R17
+L87
+L30
+R79
+R718
+L897
+L66
+L634
+R138
+R62
+R96
+L96
+L122
+R18
+R88
+L29
+R44
+R430
+L45
+L97
+L51
+L76
+L60
+L66
+L34
+R992
+R25
+R69
+L52
+L534
+R72
+L71
+L1
+L30
+L70
+R55
+R45
+R1
+L19
+R3
+R53
+L15
+R94
+L391
+L84
+L20
+L408
+L14
+R19
+L29
+L60
+R46
+L76
+R26
+L785
+R59
+L45
+R13
+R32
+R71
+L23
+L9
+R61
+R414
+R22
+L24
+R104
+L5
+L311
+L14
+L750
+L36
+L755
+R55
+L95
+L39
+R46
+L40
+R28
+R5
+R77
+R18
+R11
+R60
+L71
+R13
+R32
+R55
+R823
+R89
+R88
+R49
+L65
+R3
+L87
+R98
+L32
+R86
+R87
+R57
+L71
+R44
+R99
+R364
+L49
+R20
+L8
+R9
+R607
+L62
+R51
+R923
+L41
+L99
+L953
+L8
+R52
+R426
+L48
+R303
+R45
+L49
+L51
+L22
+L3
+L10
+R11
+L81
+L471
+R76
+R50
+R750
+L41
+L79
+L23
+R13
+L4
+L57
+R91
+L89
+L369
+L42
+L39
+L86
+L56
+L719
+R345
+L45
+R28
+R72
+L92
+L47
+R85
+L49
+L97
+L78
+L822
+R11
+L63
+L48
+R11
+R544
+L55
+L24
+R62
+L38
+R50
+R50
+L46
+L32
+L21
+L74
+L35
+L10
+R43
+L84
+L8
+L833
+R40
+L82
+L78
+L16
+L73
+R9
+R965
+L65
+R41
+L941
+L77
+L76
+R53
+L37
+R1
+R36
+L41
+L281
+R22
+R911
+L11
+R822
+R460
+R18
+L70
+L74
+L443
+R922
+R65
+R34
+L34
+L544
+R84
+R80
+L120
+L543
+R49
+L99
+R42
+R751
+L25
+R825
+R48
+L97
+L60
+R28
+R81
+L43
+L818
+L25
+R86
+L21
+L547
+R71
+L3
+R54
+L54
+R8
+R692
+R85
+L85
+R629
+R86
+L79
+R6
+L626
+R3
+R97
+L16
+R84
+R87
+L471
+L96
+L704
+L31
+L33
+R13
+L77
+R28
+R57
+R67
+L974
+R38
+R8
+R17
+L336
+L77
+L75
+R61
+R14
+R34
+R19
+L52
+R27
+L228
+L605
+R73
+R32
+R90
+R10
+R34
+R48
+R18
+L59
+R789
+R70
+R7
+R83
+L7
+R17
+R54
+R42
+R363
+R793
+R48
+L91
+L9
+R49
+L28
+R79
+R43
+R28
+L62
+L80
+R4
+L33
+R59
+L19
+L232
+R192
+R47
+R17
+R36
+L24
+R18
+R6
+L286
+L25
+R11
+L67
+L79
+L1
+L19
+R66
+R26
+R423
+L205
+L92
+R448
+L33
+R41
+R12
+L60
+L43
+L95
+L795
+L36
+L20
+L69
+R72
+L74
+L95
+L79
+R80
+R94
+R95
+L13
+R78
+R19
+R21
+R43
+R17
+L27
+R66
+R50
+R370
+R34
+L53
+L60
+L93
+L47
+L14
+R2
+L88
+L33
+L354
+R48
+R59
+L20
+L96
+L36
+R60
+R72
+L287
+L1
+R94
+L99
+R29
+L36
+L2
+L998
+L39
+L78
+L51
+L39
+L9
+R51
+R51
+R88
+R422
+L120
+R3
+R21
+R84
+R75
+R83
+R468
+R90
+R30
+R593
+R77
+L71
+R71
+L61
+L39
+L491
+R54
+L76
+L383
+L4
+R42
+R58
+L70
+L98
+R12
+L44
+R12
+R88
+R731
+L94
+R912
+L81
+R372
+L40
+R82
+R45
+R62
+R11
+L195
+L31
+R26
+R80
+R20
+L176
+R76
+R96
+L96
+L58
+L12
+L558
+R28
+R91
+L91
+R65
+L34
+L52
+R21
+R64
+R96
+R28
+L88
+R93
+L33
+L53
+R93
+L390
+R44
+L92
+R65
+R39
+R34
+R56
+L62
+L78
+L28
+L32
+R2
+L347
+R58
+L990
+R21
+L78
+L50
+R28
+L80
+L70
+R50
+R4
+L282
+R78
+R41
+L70
+R342
+R18
+R69
+L55
+R55
+L51
+R12
+R839
+R51
+L782
+L69
+R86
+L78
+R921
+L43
+L74
+R88
+L655
+L80
+R231
+L59
+L925
+L39
+R981
+L79
+R76
+R949
+R99
+L63
+L36
+R25
+R93
+R297
+L79
+R22
+L58
+R162
+L73
+L789
+R665
+L93
+R37
+R12
+R88
+R4
+L621
+L92
+R86
+R14
+R31
+R409
+R60
+R43
+L90
+R47
+L56
+R556
+L22
+R64
+L50
+R66
+L58
+R584
+R14
+R2
+R21
+R79
+L134
+L66
+L93
+R23
+L52
+R87
+L49
+L916
+L47
+L766
+R72
+L9
+R57
+L5
+R198
+L69
+R59
+R10
+L79
+R33
+R46
+L58
+R83
+L49
+L98
+L43
+L51
+R76
+R929
+R85
+R26
+L16
+L253
+L31
+R18
+L732
+L86
+L68
+L69
+L58
+L5
+L82
+R31
+L835
+L14
+L19
+R919
+R860
+L660
+L20
+L50
+L30
+L28
+L674
+R47
+L45
+L71
+L37
+R78
+L70
+R92
+R8
+L46
+L35
+L19
+L44
+L46
+L878
+L95
+L37
+L31
+L34
+R78
+R61
+R26
+L57
+L57
+L124
+L10
+R48
+L81
+L1
+L42
+L16
+R61
+R4
+R11
+L936
+L67
+R905
+R62
+L64
+L498
+R85
+L231
+R62
+R87
+L363
+R741
+R11
+L133
+L290
+R396
+R45
+R71
+L25
+R6
+R115
+L15
+R16
+L78
+L50
+L72
+L99
+R60
+R23
+L42
+R43
+R39
+L91
+R552
+L630
+L80
+L921
+R22
+L62
+R36
+R99
+L65
+R32
+R68
+R17
+L560
+L16
+R64
+R56
+L34
+L91
+R529
+R48
+R42
+L43
+L53
+L94
+R96
+L63
+L284
+R86
+R16
+L16
+L57
+R23
+L66
+R40
+L40
+R145
+R59
+L304
+L196
+R21
+R193
+L98
+L820
+L93
+L632
+L75
+R33
+L33
+R74
+R1
+L75
+L872
+R72
+L61
+L94
+L64
+L81
+L96
+L4
+R3
+R97
+R17
+L40
+L877
+R81
+R99
+R14
+R37
+L63
+L86
+L33
+R46
+L95
+L81
+R81
+L50
+R50
+R38
+L68
+L298
+R6
+L812
+L77
+L64
+R75
+L23
+R723
+R36
+R64
+L29
+R988
+L59
+L20
+R103
+L83
+L14
+R74
+R44
+L95
+R689
+R29
+R16
+R57
+R15
+R985
+L22
+R66
+L58
+L16
+R30
+R764
+L59
+L71
+L273
+L59
+L73
+L42
+L674
+R27
+L940
+L24
+L415
+R39
+L319
+L281
+L82
+L53
+R333
+R2
+R1
+R99
+L50
+R886
+R18
+R89
+R57
+L859
+L20
+R79
+R21
+R79
+R8
+L780
+L28
+R572
+L72
+R32
+L870
+R91
+R45
+R965
+R99
+L62
+L417
+L73
+R90
+L697
+R270
+R812
+L94
+R54
+R99
+L44
+L53
+L66
+L81
+R80
+R20
+R94
+L72
+R78
+R35
+R565
+L64
+R98
+L34
+L246
+L10
+L46
+L5
+L486
+R93
+R96
+L14
+L82
+L46
+R78
+L54
+R97
+R41
+L19
+L97
+L832
+L862
+L85
+L8
+R87
+L54
+R992
+R62
+L681
+R85
+R98
+L743
+R10
+R31
+L6
+R87
+R58
+R87
+R92
+L87
+R53
+L134
+R50
+R528
+L53
+L53
+R78
+R716
+R81
+L97
+L593
+L62
+L396
+L70
+R3
+R41
+L23
+R85
+L57
+L13
+L38
+R71
+R28
+L876
+R297
+R73
+L806
+L632
+L32
+L14
+L69
+R83
+R63
+L676
+R13
+L76
+R713
+R13
+R83
+L15
+R531
+L27
+L84
+L17
+L121
+L909
+R9
+R27
+L28
+R960
+R183
+L42
+R50
+R50
+L7
+L87
+L62
+R26
+R30
+L28
+R28
+R81
+R42
+R56
+L28
+L814
+L74
+R37
+L97
+L203
+L70
+R57
+R413
+L658
+R208
+L50
+R72
+L816
+R967
+L38
+R315
+R646
+R27
+L82
+L22
+L33
+R638
+L8
+L24
+L42
+R85
+R16
+L921
+L280
+L59
+R46
+L61
+R227
+L23
+L28
+L2
+L49
+L77
+R8
+L81
+R52
+R29
+L282
+R349
+L28
+R86
+R880
+L87
+R591
+L37
+L738
+R9
+R75
+R37
+R63
+L287
+L13
+L2
+L98
+R64
+L64
+L89
+L60
+L51
+R82
+R18
+L45
+L13
+R17
+R4
+L84
+L86
+L12
+R46
+L27
+L6
+R98
+L73
+R2
+L62
+R10
+L328
+L85
+L45
+L680
+R35
+R825
+R17
+L850
+L34
+L56
+L311
+R43
+R60
+L382
+R11
+L89
+R511
+R60
+R29
+R54
+L54
+L50
+L34
+R25
+L30
+L11
+L57
+L48
+L50
+R12
+R77
+R66
+R311
+R89
+L92
+L8
+R9
+L9
+L857
+R57
+R45
+L90
+R14
+L269
+L47
+R147
+L40
+R40
+R64
+R58
+R1
+L23
+L68
+L24
+R392
+L511
+L89
+L877
+L82
+L44
+R75
+L18
+L72
+R418
+R77
+L68
+R49
+R42
+L84
+L16
+R94
+R6
+L72
+L10
+R82
+R32
+R368
+R73
+L44
+L29
+R220
+R80
+R45
+L45
+L530
+R30
+L62
+R7
+R355
+R84
+L388
+L96
+R45
+L32
+L313
+R40
+R50
+R56
+R27
+L73
+R12
+R18
+L287
+L95
+L48
+L80
+L778
+R5
+L47
+R25
+R33
+R3
+L10
+L39
+L567
+R72
+R58
+L95
+R6
+L86
+L93
+R93
+L31
+R31
+R86
+L86
+L92
+L3
+R77
+R37
+L865
+R46
+L44
+R39
+L95
+R82
+L6
+R24
+L279
+R22
+R26
+R431
+L68
+R68
+L865
+R65
+L393
+R894
+R23
+R76
+R35
+R20
+R43
+R79
+L36
+R60
+L52
+L91
+R42
+R97
+L697
+R550
+R82
+R68
+L98
+R98
+L8
+L59
+L51
+L78
+R10
+L31
+R917
+L508
+L92
+R63
+R19
+R93
+R25
+L20
+R88
+L68
+L2
+R702
+L69
+R69
+R34
+L34
+R8
+L8
+L15
+R53
+R62
+R85
+R815
+L62
+R93
+L76
+L65
+L67
+L123
+L18
+L82
+L22
+L577
+L42
+L57
+R73
+L75
+L25
+R25
+R171
+R29
+R87
+R56
+R57
+L11
+L89
+R55
+R38
+R68
+R965
+L19
+L32
+R466
+L15
+L16
+L69
+R59
+L53
+L90
+R1
+R99
+L16
+R24
+R93
+R62
+L6
+R86
+R15
+R85
+R399
+L60
+R38
+L56
+R620
+R59
+L673
+L613
+R843
+L57
+R20
+L10
+L10
+R663
+L11
+L52
+R156
+R44
+L23
+L42
+L22
+L213
+R7
+L7
+L19
+L632
+R51
+R71
+L71
+R91
+L97
+L94
+L70
+L6
+R76
+R71
+L43
+L34
+L1
+L93
+L91
+R33
+R30
+R28
+L14
+R91
+L319
+L87
+L71
+R86
+R997
+L83
+L289
+L68
+R73
+L16
+R69
+R51
+R17
+R63
+R656
+L5
+L2
+R48
+L81
+R77
+L70
+L423
+L57
+L43
+L35
+R98
+R77
+L86
+R2
+R44
+L56
+R356
+L16
+R363
+R98
+R55
+L17
+R28
+L564
+L4
+L743
+R2
+L2
+L9
+L21
+R897
+R353
+L27
+L83
+L440
+L70
+R155
+R53
+R292
+L56
+R56
+R76
+R224
+R63
+R937
+L13
+R13
+R79
+L79
+L89
+L19
+R48
+L40
+R32
+R37
+R31
+L8
+R875
+L67
+R27
+L9
+R92
+L883
+R224
+R75
+L26
+R74
+R90
+L16
+R874
+R99
+L21
+L840
+L60
+L71
+L15
+R86
+R445
+R55
+R94
+L7
+L50
+R80
+L87
+R70
+L79
+L17
+R996
+R86
+R214
+R29
+R71
+R63
+L63
+L22
+R2
+R50
+R69
+R86
+L585
+L28
+L52
+L418
+R2
+R750
+L645
+L72
+L848
+L428
+L61
+L16
+L84
+R16
+R261
+R530
+L75
+R625
+L3
+R46
+L31
+R39
+L723
+L85
+L56
+R21
+R35
+R83
+R90
+L86
+L33
+L54
+R77
+L865
+R114
+L293
+L39
+R88
+L81
+R59
+R740
+L64
+L30
+L7
+L99
+R695
+R61
+R88
+L99
+L96
+L892
+R10
+R33
+R25
+L25
+L147
+R47
+L76
+R83
+R93
+L36
+L846
+L618
+L59
+L32
+L20
+R11
+R95
+L83
+L110
+L96
+L6
+R189
+R6
+R17
+L12
+L80
+L20
+R49
+L67
+L82
+R167
+R33
+R3
+L3
+L12
+R15
+L26
+L97
+R20
+R74
+L74
+R73
+R27
+L47
+L153
+L502
+L13
+L95
+R10
+R63
+L63
+R92
+R8
+R708
+R89
+R546
+R357
+L474
+R89
+R85
+L18
+R82
+L664
+R712
+L28
+R98
+L5
+R11
+L62
+R674
+R63
+L63
+L263
+R5
+L6
+L55
+L63
+L18
+L20
+L743
+L89
+R52
+L99
+L1
+R65
+R82
+R81
+R72
+R56
+L454
+L627
+R25
+L75
+R80
+R814
+R81
+L263
+R61
+R2
+R31
+L18
+R48
+R36
+R96
+L8
+R115
+L77
+R855
+L578
+L69
+L31
+L14
+R14
+R96
+L196
+R96
+L396
+L11
+L78
+L11
+L74
+R441
+R27
+R6
+L84
+L33
+L83
+L32
+R68
+L851
+R58
+R30
+R94
+L934
+L269
+R737
+R15
+L16
+L122
+L94
+R16
+R34
+R2
+R64
+R81
+R91
+R87
+L105
+R46
+L618
+R62
+R780
+L24
+L61
+L86
+L73
+L80
+L99
+L1
+L81
+R81
+L60
+R60
+L66
+R10
+R56
+L84
+R84
+L605
+R27
+R78
+L333
+R133
+L395
+R95
+L11
+R146
+R91
+R74
+L82
+L18
+R83
+L71
+L845
+R59
+L37
+L28
+L27
+L34
+L76
+R54
+R15
+R63
+R20
+R18
+R87
+L64
+R99
+L16
+L3
+L28
+R502
+L71
+L55
+L57
+R19
+L7
+R32
+L2
+L24
+L6
+R8
+R92
+L11
+L89
+L16
+R692
+R50
+R73
+R11
+R187
+L63
+R63
+R3
+R83
+L83
+R98
+R778
+L2
+L86
+R35
+R57
+L85
+L95
+L2
+L61
+R63
+R94
+R6
+R142
+R24
+R11
+L57
+R60
+L80
+R886
+R151
+R16
+R47
+L975
+R75
+R98
+R82
+L31
+R49
+R2
+L89
+L11
+R62
+R38
+L27
+R21
+R406
+L342
+R53
+R18
+L113
+R23
+R77
+R84
+L64
+R64
+R325
+R84
+R91
+L36
+R76
+L49
+L91
+L74
+R3
+R71
+L25
+L42
+L833
+L197
+L47
+R44
+R88
+L7
+R372
+R19
+L72
+R54
+R50
+R67
+R579
+R50
+L219
+R19
+R65
+L94
+L16
+L63
+R89
+R19
+R432
+R2
+L34
+R90
+L889
+L361
+R635
+L75
+R44
+L251
+L38
+L67
+L24
+L86
+R41
+L4
+L23
+L92
+L35
+R590
+R45
+R61
+L99
+L601
+L438
+L29
+L16
+R34
+R88
+R30
+R492
+L292
+R26
+L88
+R17
+L85
+R67
+L976
+L41
+R479
+L629
+L391
+L21
+L34
+R46
+L511
+R50
+L44
+L617
+R22
+L401
+L50
+R51
+R20
+L536
+L73
+L36
+L675
+L42
+R87
+R255
+L35
+L20
+L445
+R22
+L69
+L175
+R22
+L12
+R86
+R26
+L79
+R314
+R38
+R28
+R899
+L88
+L62
+R50
+L86
+L486
+L79
+R50
+L875
+L59
+L65
+R27
+R53
+R20
+L28
+L72
+L98
+R7
+L30
+R21
+L821
+L79
+R503
+L83
+L10
+R35
+L8
+R366
+L43
+L36
+L24
+L115
+L85
+L30
+R69
+R21
+L60
+L30
+L99
+L21
+R50
+L35
+L65
+L647
+L113
+L120
+L20
+L34
+R84
+R3
+L53
+L743
+L751
+R694
+L342
+L87
+R11
+L82
+R36
+R34
+L75
+L5
+L73
+L17
+L88
+R39
+L49
+L2
+L9
+L891
+L43
+R760
+R83
+L388
+L12
+L1
+L72
+L18
+R34
+L26
+L17
+R16
+R998
+L14
+R48
+R52
+L21
+L56
+L27
+R86
+R45
+R73
+L27
+L56
+R83
+L13
+R13
+L20
+L241
+L439
+L814
+R35
+R79
+R12
+L99
+L94
+R51
+R353
+L753
+R30
+L45
+R45
+L41
+L78
+R19
+R4
+L4
+L6
+R70
+R12
+R425
+R85
+R67
+L51
+L757
+R55
+R95
+R38
+R67
+R65
+L99
+L111
+L49
+L6
+L52
+L3
+R35
+R26
+R97
+L3
+L143
+R43
+L44
+R44
+R37
+R35
+L72
+L59
+L860
+R19
+R38
+R62
+R97
+L53
+L544
+L57
+R57
+L89
+L97
+R786
+L82
+L99
+L23
+R569
+L76
+L55
+R97
+R17
+L48
+L316
+R8
+L60
+R60
+R15
+R93
+L53
+L23
+R36
+L60
+R94
+L369
+R383
+R92
+L132
+R80
+L762
+R57
+R34
+L77
+R74
+L21
+L14
+L10
+R71
+L36
+L8
+L77
+L979
+R21
+R979
+R280
+L91
+R11
+R79
+R21
+R54
+L67
+L21
+R66
+L32
+R24
+L313
+R136
+L52
+R777
+L72
+L80
+L40
+R44
+L813
+R6
+L56
+L50
+R55
+L66
+R710
+L430
+L5
+L66
+R262
+L682
+R87
+R643
+R19
+R80
+R467
+R15
+R773
+L55
+L18
+R58
+L427
+L61
+L229
+R59
+L18
+L20
+R20
+R14
+R4
+L97
+R34
+L268
+L69
+L45
+R88
+R392
+L35
+L41
+L59
+R526
+R1
+L11
+L515
+R29
+R75
+R94
+L99
+L69
+L33
+R2
+L63
+R1
+L38
+R28
+R53
+L72
+R8
+R54
+L51
+R71
+L61
+R84
+R86
+L37
+L29
+L54
+R620
+L5
+R5
+R69
+R831
+L36
+L31
+L33
+R1
+R29
+R70
+L15
+R78
+R79
+R58
+L555
+L59
+L46
+L40
+R47
+R53
+R66
+R34
+R89
+L769
+R19
+R8
+L47
+L5
+L495
+L49
+R46
+R3
+R58
+R42
+R89
+L60
+R65
+L250
+L44
+L26
+L43
+R69
+R49
+R23
+L72
+L11
+L89
+R882
+R3
+L35
+L612
+L38
+L876
+R17
+L420
+R73
+L98
+L51
+L82
+R40
+R39
+R53
+R5
+L58
+L642
+L1
+L299
+L814
+L86
+R59
+L71
+L489
+L99
+R55
+L55
+R91
+L63
+L14
+L71
+R70
+L190
+L23
+L28
+L72
+R33
+L69
+L64
+R3
+R35
+R19
+L540
+L51
+L18
+R52
+R6
+L247
+R73
+R733
+R80
+L45
+L329
+R48
+L97
+L22
+R59
+R41
+R1
+L14
+R44
+R56
+L87
+R965
+R51
+L6
+R5
+R79
+L93
+R51
+R50
+L2
+R628
+L88
+R60
+R34
+L915
+L19
+R55
+R745
+R67
+L75
+L92
+L98
+R871
+L75
+R3
+L19
+R18
+R62
+L92
+L32
+R85
+L23
+L92
+L26
+R18
+L40
+R40
+L86
+R86
+L59
+R32
+L93
+L32
+R78
+L45
+L70
+R89
+R908
+L45
+R68
+L26
+R63
+R32
+R58
+R86
+L46
+R2
+L19
+R19
+R847
+R59
+L5
+R90
+R72
+L63
+L19
+R19
+L859
+L16
+L25
+R59
+L59
+R39
+L39
+R431
+L58
+R27
+L49
+L29
+R78
+L42
+L91
+L67
+R86
+L786
+L50
+R570
+L42
+R5
+R984
+L76
+L60
+L25
+R56
+R98
+R55
+R85
+R677
+R93
+L70
+R83
+R317
+L471
+R55
+R16
+L448
+L155
+R64
+R339
+L41
+R173
+L20
+L72
+L20
+L520
+L24
+L76
+R89
+R35
+R13
+L759
+R624
+R98
+R37
+R563
+R99
+L99
+L703
+L57
+L32
+R61
+R31
+L630
+L70
+R60
+L91
+R250
+R6
+L25
+R30
+L69
+R38
+L42
+R43
+L9
+R9
+L927
+R40
+L76
+R253
+L619
+L271
+L425
+R21
+R99
+R76
+L71
+R284
+R93
+R311
+R790
+L32
+L46
+R90
+L52
+R62
+L45
+L76
+R21
+L91
+L30
+R221
+L787
+R81
+R59
+L53
+L39
+R12
+L573
+L27
+L873
+R87
+L587
+R8
+L240
+R431
+R617
+R92
+L8
+R7
+R93
+R57
+R58
+L41
+R16
+L78
+R80
+L92
+R36
+L536
+L80
+L70
+L27
+L74
+L82
+L18
+R51
+L576
+R7
+L14
+R83
+R522
+R878
+L55
+L60
+R15
+L79
+R75
+R4
+L44
+L1
+L13
+L8
+L94
+L13
+L727
+R40
+R10
+R91
+R59
+R19
+L63
+L56
+L93
+R93
+L99
+R56
+R31
+L51
+L37
+L30
+R290
+R40
+R94
+R254
+L48
+L15
+L95
+R86
+L41
+R35
+R45
+R19
+R66
+R532
+L738
+L50
+L18
+R89
+L15
+L22
+R79
+R90
+L18
+R953
+L49
+R83
+R84
+R357
+L540
+R37
+R246
+L70
+R48
+L78
+L11
+L77
+R59
+L71
+R30
+L77
+R47
+R61
+R36
+R68
+R35
+L64
+R64
+L76
+L79
+R55
+L95
+L76
+R671
+L21
+L28
+R1
+L452
+R47
+R85
+L731
+R99
+R88
+L569
+R50
+R40
+L9
+L31
+R17
+R57
+R651
+L27
+R33
+R40
+L51
+R43
+R12
+R56
+R93
+L789
+L79
+L12
+L13
+L263
+L937
+R653
+R39
+L43
+L49
+R23
+L23
+L42
+R789
+R2
+R251
+R70
+R99
+L658
+R89
+R691
+L427
+R36
+L57
+L50
+R75
+R332
+R33
+L1
+R168
+L929
+R29
+R53
+L2
+L51
+L52
+R52
+R89
+L24
+L65
+R65
+R35
+R822
+L87
+L75
+L32
+L668
+L408
+R114
+L366
+L27
+R15
+L46
+L42
+R14
+L52
+R90
+L52
+L83
+R16
+L906
+L25
+L97
+L205
+L27
+L121
+L52
+L99
+L1
+R310
+R90
+L61
+L39
+R4
+R81
+R15
+R187
+R13
+L84
+R66
+R51
+R67
+L656
+R35
+L48
+R89
+L606
+R786
+R73
+L14
+R41
+L18
+R818
+L73
+R73
+R14
+R18
+R27
+L81
+R49
+R1
+L93
+L33
+L8
+L694
+L31
+L83
+R414
+R60
+R40
+R88
+R46
+L34
+L451
+L5
+L86
+R90
+R52
+L61
+R47
+L86
+R5
+L953
+R418
+L70
+R696
+R1
+R69
+R296
+R38
+L69
+R69
+R89
+L989
+R173
+R42
+R585
+L638
+L54
+L29
+L569
+L10
+R14
+R47
+R95
+R99
+L62
+R807
+R27
+L24
+L94
+R63
+L72
+L74
+R74
+R458
+R89
+R953
+R25
+R89
+L77
+L47
+R36
+L133
+L93
+R21
+L21
+L397
+L3
+R25
+L340
+R94
+R7
+R45
+L31
+R85
+R88
+R94
+R933
+L59
+L292
+L449
+R28
+L28
+L163
+R645
+R18
+R11
+R89
+L4
+R760
+R79
+L35
+R55
+L55
+L10
+R5
+R809
+L4
+L51
+R18
+R28
+R29
+L24
+L53
+R176
+R25
+L48
+R41
+L62
+L74
+R357
+L84
+R3
+R29
+L10
+L71
+L65
+L26
+L37
+R56
+R74
+R16
+L47
+L4
+L226
+L60
+L3
+R27
+R66
+L81
+R781
+L61
+R567
+L673
+R367
+R22
+R78
+L955
+L207
+L85
+R768
+L5
+L37
+L79
+L60
+R960
+L93
+L1
+R47
+R47
+R43
+L43
+L62
+R192
+L85
+R55
+R36
+R433
+R731
+L576
+L824
+L860
+R162
+L30
+R46
+R28
+L46
+R724
+R48
+R18
+L790
+L85
+L15
+R50
+R50
+R97
+L10
+L87
+R93
+L46
+R53
+R82
+R39
+R79
+R96
+L96
+L30
+R84
+L54
+L2
+L16
+R60
+L42
+R88
+L888
+R63
+R919
+L82
+L34
+L64
+L2
+R4
+L504
+R66
+L66
+R73
+L4
+R72
+R59
+L74
+L26
+L87
+L210
+L49
+R66
+L22
+L98
+L45
+R64
+L19
+L64
+L36
+R94
+L874
+R880
+R9
+L44
+L291
+R26
+R53
+R47
+R86
+R38
+R97
+L484
+L145
+L48
+R31
+R66
+L41
+L44
+L44
+R55
+R10
+L77
+R594
+L94
+L32
+R24
+R81
+R192
+R87
+L952
+R73
+R73
+L83
+R37
+L83
+R83
+R818
+R82
+L62
+R62
+L99
+R42
+R46
+R2
+L91
+L18
+R77
+R41
+R27
+L27
+R25
+L25
+L84
+R80
+L96
+L117
+R17
+L329
+L71
+L689
+R89
+R66
+R352
+R74
+L60
+R15
+R53
+R33
+L33
+L3
+L95
+R98
+R53
+R91
+R1
+L70
+R91
+L66
+L30
+L10
+R79
+L3
+L27
+L35
+R26
+R94
+L94
+L88
+L29
+R83
+L66
+R50
+L50
+R26
+R75
+L1
+L84
+L28
+R84
+L56
+L16
+R55
+R22
+R23
+R95
+R15
+R90
+L64
+R64
+L90
+L93
+R87
+L4
+R3
+L63
+R69
+L9
+L37
+L2
+R10
+R22
+R39
+R49
+R33
+L13
+R36
+R44
+R13
+L42
+R2
+L23
+R36
+R13
+R35
+L32
+R48
+R3
+R28
+R20
+R2
+L12
+R44
+L35
+L34
+L25
+L36
+L5
+R42
+R4
+R3
+R24
+L2
+R38
+L9
+R43
+L13
+L32
+R15
+R8
+L27
+R7
+R40
+R13
+L22
+L22
+L34
+R36
diff --git a/day1.c b/day1.c
new file mode 100644
index 0000000..d33e384
--- /dev/null
+++ b/day1.c
@@ -0,0 +1,60 @@
+#define DJSTD_BASIC_ENTRY
+#include "./djstdlib/core.c"
+
+int djstd_entry(Arena *arena, StringList args) {
+    string input = os_readEntireFile(arena, s("./day1-input"));
+
+    int64 dial = 50;
+    int64 lineNo = 0;
+    StringList split = strSplit(arena, s("\n"), input);
+
+    int32 password = 0;
+
+    for (EachEl(split, string, line)) {
+        if (!strEql(*line, s(""))) {
+            bool lineValid = false;
+            if (line->length > 1) {
+                char dir = line->str[0];
+                Int32Result numStrParsed = parsePositiveInt32(strChopStart(*line, 1));
+                if (numStrParsed.valid) {
+                    lineValid = true;
+
+                    int32 dialPrev = dial;
+                    int32 pwPrev = password;
+
+                    int32 turns = (+numStrParsed.result)/100;
+                    password += turns;
+
+                    int32 remainder = numStrParsed.result - (numStrParsed.result/100)*100;
+
+                    if (dir == 'L') {
+                        dial -= remainder;
+                    } else if (dir == 'R') {
+                        dial += remainder;
+                    }
+
+                    if (dialPrev != 0 && (dial >= 100 || dial <= 0)) {
+                        password += 1;
+                    }
+
+                    println("turn: %S, %d => %d, %d", *line, dialPrev, dial, password - pwPrev);
+
+                    dial %= 100;
+                    if (dial < 0) {
+                        dial += 100;
+                    }
+                }
+            }
+            if (!lineValid) {
+                println("Input corrupted at line %d", lineNo);
+                return 1;
+            }
+        }
+        lineNo++;
+    }
+
+    println("%d", password);
+
+    return 0;
+}
+
diff --git a/day2-input b/day2-input
new file mode 100644
index 0000000..4de7d32
--- /dev/null
+++ b/day2-input
@@ -0,0 +1 @@
+1-14,46452718-46482242,16-35,92506028-92574540,1515128146-1515174322,56453-79759,74-94,798-971,49-66,601-752,3428-4981,511505-565011,421819-510058,877942-901121,39978-50500,9494916094-9494978970,7432846301-7432888696,204-252,908772-990423,21425-25165,1030-1285,7685-9644,419-568,474396757-474518094,5252506279-5252546898,4399342-4505058,311262290-311393585,1895-2772,110695-150992,567521-773338,277531-375437,284-364,217936-270837,3365257-3426031,29828-36350
diff --git a/day2.c b/day2.c
new file mode 100644
index 0000000..37ebf38
--- /dev/null
+++ b/day2.c
@@ -0,0 +1,54 @@
+#define DJSTD_BASIC_ENTRY
+#include "./djstdlib/core.c"
+
+int djstd_entry(Arena *arena, StringList args) {
+    string input = os_readEntireFile(arena, s("./day2-input"));
+
+    StringList ranges = strSplit(arena, s(","), input);
+
+    int64 result = 0;
+
+    for (EachEl(ranges, string, range)) {
+        if (range->length) {
+            StringList startStop = strSplit(arena, s("-"), *range);
+            if (startStop.length == 2) {
+                Int64Result start = parsePositiveInt64(startStop.data[0]);
+                Int64Result stop = parsePositiveInt64(startStop.data[1]);
+                if (start.valid && stop.valid) {
+                    for (int64 i = start.result; i <= stop.result; i++) {
+                        Scratch scratch = scratchStart(0, 0);
+                        string asStr = strPrintf(scratch.arena, "%zu", i);
+                        for (int j = 1; j <= asStr.length/2; j++) {
+                            if (asStr.length/j*j == asStr.length) {
+                                StringList list = PushList(scratch.arena, StringList, asStr.length/j);
+                                for (int k = 0; k < asStr.length/j; k++) {
+                                    ListAppend(list, strSlice(asStr, j * k, j*k + j));
+                                }
+                                string firstChunk = list.data[0];
+                                bool matched = true;
+                                for (EachEl(list, string, chunk)) {
+                                    if (!strEql(firstChunk, *chunk)) {
+                                        matched = false;
+                                        break;
+                                    }
+                                }
+                                if (matched) {
+                                    printStrList(list);
+                                    result += i;
+                                    i++;
+                                    break;
+                                }
+                            }
+                        }
+                        scratchEnd(scratch);
+                    }
+                }
+            }
+        }
+    }
+
+    println("%zu", result);
+
+    return 0;
+}
+
diff --git a/day3-input b/day3-input
new file mode 100644
index 0000000..0970814
--- /dev/null
+++ b/day3-input
@@ -0,0 +1,200 @@
+3223323232423342133321323321133325222233342332323323343713331321434231231232333333232334233323322122
+3422323123349134332433333333432333313333323413433133433343234433433334323333452433843344143323335344
+3323113221321312236523622222221222225424323212132242333365351332221432232235143422248222121121832228
+3463333333523444333334433344544335323235227453444243335438244443585333243345323433342343323423544343
+4233366944836552382823534346549355354476555367335594833663342368343653554644862935563623533154857355
+1332332433331354333343732343231333333333333244331233163343322313323333333342353333433313332343313344
+2323333333132333133423233333532331333334313243333333432343123323232442532313323213333333223533324332
+5312224222713236213232382221222222216232352633323322223233232333323422323225662322323723232222222232
+2243331332223333322421433342323323331333332213223332233332153332433342223233221232112323323334332332
+3156557564452635362717784672442615553635257743349535442676644432474552623544224472653952463455546442
+1312431342342824244214465334554334223332235314353232153332244574432234522234334345234413323433435332
+3554245243536264333644415362575554525424533152554425565554435225545754365521344355555155556554244433
+3353433343933436853333343334433544533333353523333323331553333462333433233452343223323433553333333534
+7336455237364265332533353534645233452333753233274646144545334553331347633135465814457336666374354374
+2433722533332321213232333323222232322233342222371243322432283314643332334143336933224322221331822363
+2247224633427672333417546743363394719333635395533333441323733426343643343694333454335345367755643335
+2243232372672232322322321215224746323615328472712261262632721421227121452562656223322437218572422221
+1222929212582422112521233212223222234234242267327154222384122121223122512222523922212956222222252226
+3122322435422357222233333223232234352422221333433322342832323122234243231745124324563425262224222212
+1321332222443232432355222422425222244535264454241322322422345333244431431322113412444229424432364133
+1212211124122213456255217441532222222725521322332233213222221332222222331222522232142283122212112121
+1221222142222133332341312333325237232223222244224227223222113232232634322322222232323273223434131332
+5438843322344249174483324441333413342444444434313423752414444443442232434241744241444444333413444444
+2231336232333236334112243332332341353232312512325222263432225332633322235632375232223315283333433363
+1233232232244732342232235233433333134123235541423222432442243435221242423434242223322334433434343534
+2312422514215411132514322222222222222223235322134223312222221142221213222214314222122211213144122472
+2352312236346345122352672524653136221643242523462324342566643556212133253226462645113375562465463463
+2252285215225322621451522125151253218241242222322242421513142213122213274723222222122122212212242622
+4764556435435474434364374545434435645236634745385365324363447564667544243444254647645664366435256446
+2824332112222121122241422243122211121322131212222342523222233232222222122132221321211233223212242222
+1222322226122232414323112322352321231332324222222212212232243242322235213322222222322223222323222125
+2252722221562224322233133222324333222431232222232332122212212283223222235313323222321222263422212225
+3225322333142232533532322223341246336436425354236552512341262222442442432424316254235423242422424431
+1229234225411352533231233325262212262424612324412432524244236611122332236543432356222256232952224223
+4422322225363423225135213321451642433226538122141642663126542212332323422221342331242252432422222321
+4662664565466353654667543463541541665663656552266564563364254245666465446455433446366683366354765935
+8112122265252322231255272221125322122133222332245342272259236322132232234219412242132223323213224323
+4324545423224241227583333327531422243651534442323374373723223267428526133225253163132824362447344627
+1873223364414122262223231362223512323215135752522222734422222232212231222721127222262123742126233273
+2222222232222221212222211332112222311222111122232212223231322221122222222113422312422211221222221122
+6515552226443442213243133322422152331233434354121421266462313324312444525221525635242234252313112554
+2222223313344213211222422221252212321227222252322221425222221421222322222323332221423322222223243212
+3322352323333353343333333144233223226632532233333132133232322373233333433231243323133323363262322133
+1334333384313212233263453263443134334542743232641425424243735343422256314524379414634432354365527544
+2222122222122222232235222222222222323222211222222222221222222222222222223222223222238223222132112222
+4552545432554471442435255334542432343233452454373464454247443423525434455545443443545522253444253434
+2295142423439123226532549221326257642473736734226243554156257523327813952236236373774524212322953292
+6244442442833334532829613842222423522322338315233322255442882222783429222223272245232322442432445282
+2223281222122322425123122325432223222221231423221422223222352213222122222324122222254223212125222222
+4424433234542223532234133312344242223261233264433212442333234342234445123232234125135124322342223215
+3321444232221444232243522321232343434246434634325422431432452732234232342217314324414312252342131422
+4222445346344244345463442445444423442454352143434333444443353434236443445442344345444343422434444423
+7445335355442547323942325424544342334544545134465255335334523554434234624285444374443344455232725354
+6662469465375473453283843715347366454456464744242897948347645557473738466479664648345568563543338562
+3413332432331224232321343113423313124414141122312422131143212412143243221443322142222431112231356789
+4214514253524332351123524241342444644324422532442535662142332142423422322324342455541551561232442442
+1252555353483543522442375222325465493151255532427344524824242548554533654314332823448245125448973335
+3343353332423434432357344244332322345473752733743623253234344323353733563438364635433334363233353522
+4481475443864865466663533753723433263738268884757523682775288884487347484537562245448287533854845335
+2283214222572422472292362124185482222421528232637272162222421216223326222232322222122323112662222251
+3322123122222252214216221233333231532222212222523332422324122223222332113225227423275142352322812232
+2122255524233332323141342322365426641312343232525215312133422433431435222512532421153342412622412265
+4322333321433452432114212422222241244242232121244322242338222432342132722243242283444223443412426222
+2686481452258352754854574561574766144245484684536194922243385338627468565255352555437323339672423363
+1512123243234132232133124432222472421461652222346228249225222542231432532112315523336523213754323431
+2333221223222122392221223212213232222423132223334312122234323222211313242534322221224222222322233331
+2423143222321313224212232212221421231245322412232422113222245343432231342344413332121234212122432322
+5442623431233335321453824421252232355952141522433545543539332335311722233143332383725343442562123323
+4221221222122221241232222321323222252323226212221222222222221222222122421128222632321222132322122422
+2425957221421122363222228632835265272254223922243713292442232584413234282222222228223946421632156433
+2334313352234233444434474442432342455339475628455436233334243333444454472923441724248233274444144933
+1522122621421834525224232222117228283782114644247574537427343251232114632224436232222312132122332444
+2222323813234423333232323344324323313233224123343232323233542523322414233332223733231443245334326222
+2212311222211222222262232222233231324123222121122232212222322232332222232232221221221222222282121222
+6446555567535466665998357435643445437644844342775443548435536556654763995236662635659544948533464655
+5555555645569655663523984432435935347685533255235633344358886535634465343443534535566633715553544874
+2223642272622224221226212325212321232213222622321222325227222423127222232231622222242522321612232231
+2496484462443135438653377563534444657376332434415777934547754544584252525522367928355656352624353245
+2212122212231222211322212232212222263222222223222221222222222224123131222123242223282212273222121242
+4554475645355358566552555545455545864555435533456467357552458357789556143315353426543345644476644555
+5134335453346453622442534252724124434414324146262511242446444264242232752516413335453447442422256322
+8553685876753576369998575836755786969767886966796423549848793898689987896697887879864874974433698684
+3222221212433223229321122342423213211223141222324922213223412223522935613123272223824242726231274133
+2323214223322522212142232432421443422332332221222222424212432233113322625224233543322232222333442332
+1221332242334224512242343232434244233322411431122212133442112222122433423124423224285123324324422432
+3366435344323232643422212253242435322453143543135334442252422132533353345222473345344251424223333344
+5577695784874427654465756434554854566476757655434446776634753864496554464687473687744697477557496744
+2223331223122231238412212831223232322322212222122221222122222222221222252112422232122214223223122223
+2227576456152577554153253435177341723712527161376724362342426213664663134124547466564665756352111689
+5335337643654473353237332235453355166334545466422334734736326554332364443221164555535734523223763333
+1344466459323423455113777375337223859383757333338384523593433243747981433467243637342557221538535533
+7582359387865258737443328653655389875433894548344445667743258486498794928645678369824848385534734776
+2332322322342342412234222222123242322323433221333223322422225132333224332123221343213233322333223335
+1222212339322122758223313222222412234122252233631244134342224222122222223327233224222433319335255325
+6333333432353233327325334333323333274233333373223333337313333233353533323323353333332333333433223233
+2222231213132221223322123412222323242231322222422221123124312224211232331236231113222223242212222222
+6211221233212246222221221723221232332221222252212222122242232221211221222229233224323232222323634222
+4352121222222321222222929223222422223722623222225222222412282122222222222242422212222693244181222222
+8913337637249265653436452735736242455355355265685536925394769886566866374777555685751454834945789964
+6752637474433657857283376566544626855476477675654588677482837533623665555466364457344273957332432598
+4222413233422323343452222422233472623325342313333233232332524234234232143323733334434344324325327224
+8143572574121427425454114554163292434837485274446547432448523464544552394756325354741544552749493125
+2324242332224222222222222222322342426222122244332322222212222222223221222212232222222231222432223522
+2425251321241127455322154425742233534241444318282344443465142233458442232313443422323121526223256242
+5233541533952725232533434244442434334242514243352523321432353334334324654448344357263457437323422233
+1222222132122222224422244224221235421422122212343322242321222233222222222242212423224222222221232212
+4373334332463466333442362333753332443524543247336343243645323237488441333343346333295132124373733633
+2523534431224324414345482234444221454423424224333422322243448324312322434234442114435244442243441234
+5216772222555212556333333872237834577173233119353423313212327282523773262236416443872322221322534422
+4424454444342444524324435443234344844393334425484234434665336524452442786454756352213845227724656132
+3363354538235285633244636333445633466653126532211425338682456273436424254761431546225362531484356752
+3244434526534332442451233526275445263746427475576222343244732416444254472234325468473423233327523324
+2422544121232544222161323122663663125363226431332142232152243452376322341323334243243446643226633222
+2556357124477356153352651364546654358344426375261446425545358346436237863435535732553326661872325464
+5313342221214324343222333354423244423232415434421125243142423242452344323234424343233213432336333321
+2222222415222333212233322232232823223323532222223322234341323213222225132513233233144422241322323143
+2435536564346557977472363654558672655363255424452352727654342526452266662643477554244247634427452527
+2412313223331213327313121133331232322213221333333232231232222223452122132323126333523223212333232111
+3231332352212234212242355842132211432322343525228242534152254224252644227822521152241233542151273151
+1242242354442274547635266524274258756466558575646635642155345536824686545243645535452346434554656564
+6355664686264756488437865667634746736655788584654552586677568753312538543555254569657737547457458648
+3433333423124316324444328434113632222233763435842543934312343143673636821751634121614222233313442742
+2222422122222142252221232135222222325222244213424123245231122141312212221322221222121425222122122231
+4421273146345347671635465533646555455635434456635447367357366473634464635723765465847646573444674556
+8632543245483535984557352533562435234658334546456423545573444857755938555768254565451952547643543775
+3333333332333433543233332432433323323633133233233513335333433323432533333213334323333334434323233333
+3233333213323323313321331112423352233223333363332323322223225313335653333435322353221323233333233226
+3542224325544323334223433232434114234432125224324433142342313214416885443227423223233335124443443243
+5332424223422323232331421332142224234133323132312632224342362235122233232523311431244322126332325322
+3222323323312231332344313274322343223361261283233235222241251333332233123623322112244313232131231326
+3553546227454236346375443545175372962433445723533766777317531733331642245574676774264732264697226946
+2435643136269525431345566244444444225443349535623455444342423624564425263416364322344336355223562544
+5465346325726225434122422274252322744424443525523241734151312624357524433134543352446424544444254232
+1222232123121325324231422232221222322322222222222422433322222222224944125182233332122322122422222232
+2323423225235522223424422232612132311521844152232226655722121542532222142512472334432244213422312526
+5433221213531231256242366438214111642244562263723315543556223353574322732164154234244571947254521372
+4423444256245575277454484449462255466372224484443365354543562747423333494445434422443478532288535643
+7212212423321242211212221221222221222622921222662422614216245222324222251137525442122222222422532232
+3866324425639525332338773332267343827345232373334433521425625823323364613333729547256235334362325342
+3956721534132232125232223354253319653232234334419473243332814423252224323234341322431441435278353522
+6217536363656322526322115145666764366246463924636664266333265321456389562886565673152312236666533235
+2222245723222542322215462532312222252224331222122222216244622139221232245226732222225252322222232411
+2322543139452322455421152531422225323453243313452454242242151713542324264543313333713931223423342228
+3221312232421323282233234237522182224452253425262523326521312325322322162331221425332373123155232222
+2746432442536455442925944435593977235762735556344345555295341845842826452232744332536933645365525654
+2441574333821246122228322222312142252223248422252122432445221245132292339822481342645252222434225143
+2232222318242253123348232333344332226324544434534253222244322443222272822112142124233447132324441413
+2241442454535543312521314131131112335315542251251413111433321452321523234322331555423531515213426789
+2421866322223443213424411342422221235322434155242342122323443332862323334333223133323221232323212264
+4722432322464532321414334423442423222342212342124343424224224244443434442442312432312121412343262442
+7232221322321522232326122212222342222322222212312222323242222222122222353332122223122112131233222222
+2643222121222222322322422222222123223122243232324222142233112211223151322222212212232223422224342313
+3442333385524542324324223132392421244233363233622433141237435232425524131382333933335432333133587443
+4331133222243432515443224333732243383832244133237352433333264644322723221373325733371283342362332353
+2332332334232123233313332132122463332332122233223332332233512283342443333133633323321123362232323312
+2322323212232342232222232121232222131222122232233233122223221323233342222422222422212342221323231233
+4398433487689256957736447448958955647985575694458686573584458446529576886544765828746538614956782733
+5342265323223554344222423442443442244621452444334535623444364234751623434213245225222261231422234426
+3333222325132222521222231353123353122343112333353522222252252222131422235532213223231231323222525515
+1628322332616133411672142534245323296324442522322323333123232614218315222212122272229542333532312335
+4486646549621254343552376335367338931262676565364546652367262516243571456385522267463567256716552425
+3132342252574332243325555411453232224222542352542443223554226142523546322425433154312255325532432424
+3464267693574476953135666243136766777645656548444662243226644544487953443548557477854339565338341666
+4314322222132224222221232222222223222222221222122225422211222223523222231321322212252322222522213222
+8745345432452732543532735233374423435438343323453534332478358443637444436533235335315734845423235822
+2373227776462391365224136636227272715323636285134733342825834238571243345753251263333742335753333763
+6236531553554154255644321211121223122244435453611521363315445223336111124466261146114553363516454789
+2141132231122222128231324232242223212124232222531422221312221242422234223122222212222542422344222321
+5695222952453322424522524329243556774533752455554522244442365425913434264444322544692448456424433324
+2222412222322542232222321332222211332122221454432312321322242223222212422242242111232231324232212223
+1222262425251422221421121212622235222422222241533212232612522422162224642322213161325525522311233221
+2357329192452425321496232348725343236257672366346176324732582263123357855556254537754544333427777296
+4122365247223133236225133223821321627528418255422292622234621243613323235262236695346315222412823215
+8232327686335213853635467688643854864565678246571456562298523736225424931483345863684647465533884763
+5433644333734433692878966464333565342355277374345773865533443553344433483941615253737584393333253359
+2623182117312236223223229122232923282623243321226112232224293123133222127211521213222222127322222224
+4515355464345435252553259327524365344535354453245547753457653474554755537357543549834754544354454257
+4343242444454244355441446534224434653463254664462422444444454634424542754642545446454456443345236244
+6252564353123123234553322165573813992576675563459842432346475523255223746632435673632324542622232743
+3683762484734182117162245181271658436561472683238836883216376187475754326856275132257561553873514879
+8322422233253425332533442132461642333455462342214353436112244432434223443313413233444116359358325357
+2122231223214232212133332132222233931212222232322222122223221322223221227222122222223222222252212122
+2133522334323313232222243543222432433463536553452323324245443343254241133533234353342343255461321231
+4122333122212322225322231334325214312232223232222412212214232124422231324324242122124222322242232333
+2217222478253322421552352224222221422282251262322324321327622222623326421343522112272721225413222522
+4324333333323335332243333323654533332333343333342233442234332433134323213236333443231334333342313423
+4455855445424555743549549446445444185464658743359464455555473834547337497954564438854556355578864554
+4635155355543423242435552564645777735354562584442545334445744343552455484475445234235895615335665432
+3522213332223422221352222333332315223232321223112223132232223223343313337221335322113113312322321322
+2462451864722242312529223247244228744625352215342742231553326545451872824234526145272226523759472552
+3241433223333432443242352432251433253342224423323342235233224434235223342321431436384243233223323633
+2144222234232524322112262213224424242243432232442213442112222211362412221421223222233421212343242432
+5546565255544585455857545954555633553553535926559748584756454463543565551595454257455555595555855744
+4632332242242234293772618826288172757372366734632738945845236752479947259285477278212467375386832853
+2343553276363356535522332242643945654352263332355665563332352434334538634333234323524532646666532373
+6642233412433362523333233544252325392143222451732233234252432221136443244543244155633432322432142312
+6645513635553536456434465554555532563634624843245574253462583453246844857313433341876266423526473852
+1113233522332432321212222313412315521343627282223261232234221222322442422324222532621323222434113195
+2221255122222112321232232225222222242222221523222213222222221121122123224312322231221223212222222224
+1112121122222223222222222222112242222232323212322222213112322622222132213212123253423222223242122232
diff --git a/day3.c b/day3.c
new file mode 100644
index 0000000..30aa2e6
--- /dev/null
+++ b/day3.c
@@ -0,0 +1,38 @@
+#define DJSTD_BASIC_ENTRY
+#include "./djstdlib/core.c"
+
+int djstd_entry(Arena *arena, StringList args) {
+    string input = os_readEntireFile(arena, s("./day3-input"));
+
+    StringList split = strSplit(arena, s("\n"), input);
+
+    int32 maxJoltage = 0;
+
+    for (EachEl(split, string, line)) {
+        if (strEql(*line, s(""))) {
+            break;
+        }
+        int32 firstDigit = 0;
+        int32 secondDigit = 0;
+        int32 secondDigStart = 0;
+        for (int32 i = 0; i < line->length - 1; i++) {
+            int32 currDigit = line->str[i] - '0';
+            if (firstDigit < currDigit) {
+                firstDigit = currDigit;
+                secondDigStart = i + 1;
+            }
+        }
+        for (int i = secondDigStart; i < line->length; i++) {
+            int32 currDigit = line->str[i] - '0';
+            if (secondDigit < currDigit) {
+                secondDigit = currDigit;
+            }
+        }
+        maxJoltage += firstDigit * 10 + secondDigit;
+    }
+
+    println("%d", maxJoltage);
+
+    return 0;
+}
+
diff --git a/djstdlib b/djstdlib
new file mode 160000
index 0000000..3f3ef53
--- /dev/null
+++ b/djstdlib
@@ -0,0 +1 @@
+Subproject commit 3f3ef5351fa083095984642bc408850deb23f7f1
diff --git a/target/app b/target/app
new file mode 100755
index 0000000..d463035
Binary files /dev/null and b/target/app differ