diff --git a/src/day13/day13.go b/src/day13/day13.go
new file mode 100644
index 0000000..dcc5560
--- /dev/null
+++ b/src/day13/day13.go
@@ -0,0 +1,100 @@
+package main
+
+import (
+	"AOC2021/src/helper"
+	"fmt"
+	"os"
+	"strconv"
+	"strings"
+)
+
+type foldingInfo struct {
+	alignment string
+	length    int
+}
+
+func main() {
+	args := os.Args[1:]
+	input, err := helper.GetInput(args[0])
+	if err != nil {
+		fmt.Println(err)
+	}
+	var points [][2]int
+	var folds []foldingInfo
+	for _, row := range input {
+		if helper.ContainsCharacter(row, ",") {
+			splitRow, _ := helper.MapToNumber(strings.Split(row, ","))
+			xValue := splitRow[0]
+			yValue := splitRow[1]
+			points = append(points, [2]int{xValue, yValue})
+		}
+		if helper.ContainsCharacter(row, "=") {
+			splitRow := strings.Split(row[10:], "=")
+			aligment := splitRow[0][1:]
+			length, _ := strconv.Atoi(splitRow[1])
+			folds = append(folds, foldingInfo{aligment, length})
+		}
+	}
+	part1(points, folds)
+	part2(points, folds)
+}
+
+func part1(points [][2]int, folds []foldingInfo) {
+	step1 := foldPaper(points, folds[0])
+	set := make(map[[2]int]struct{})
+	for _, point := range step1 {
+		set[point] = struct{}{}
+	}
+	fmt.Println(len(set))
+}
+func part2(points [][2]int, folds []foldingInfo) {
+	for _, fold := range folds {
+		points = foldPaper(points, fold)
+	}
+	printPaper(points)
+}
+
+func foldPaper(points [][2]int, fold foldingInfo) [][2]int{
+	var newPaper [][2]int
+	for _, point := range points {
+		newPaper = append(newPaper, foldPoint(point, fold))
+	}
+	return newPaper
+}
+
+func foldPoint(inputPoint [2]int, fold foldingInfo) [2]int {
+	direction := 1
+	if fold.alignment == "x" {
+		direction = 0
+	}
+
+	if inputPoint[direction] > fold.length {
+		inputPoint[direction] = fold.length - (inputPoint[direction] - fold.length)
+	}
+	return inputPoint
+}
+
+func printPaper(points [][2]int) {
+	maxX := 0
+	maxY := 0
+	for _, point := range points {
+		if point[0] > maxX {
+			maxX = point[0]
+		}
+		if point[1] > maxY {
+			maxY = point[1]
+		}
+	}
+	paper := make([][]rune, maxY+1)
+	for i := 0; i <= maxY; i++ {
+		for j := 0; j <= maxX; j++ {
+			paper[i] = append(paper[i], ' ')
+		}
+	}
+	for _, point := range points {
+		paper[point[1]][point[0]] = '#'
+	}
+	for _, row := range paper {
+		fmt.Println(string(row))
+	}
+}
diff --git a/src/day13/day13Input.txt b/src/day13/day13Input.txt
new file mode 100644
index 0000000..4ccb817
--- /dev/null
+++ b/src/day13/day13Input.txt
@@ -0,0 +1,860 @@
+609,754
+1101,140
+1129,317
+622,327
+967,218
+661,789
+661,127
+1183,596
+649,280
+932,693
+1288,157
+1111,372
+781,219
+994,236
+1145,770
+1153,395
+755,289
+502,406
+850,126
+902,58
+907,5
+268,700
+646,436
+1108,523
+443,343
+932,201
+1115,105
+1191,278
+1241,203
+1000,252
+1290,403
+144,597
+927,448
+782,630
+131,705
+333,367
+38,613
+1285,294
+872,93
+492,759
+986,203
+70,740
+378,693
+1004,319
+731,235
+479,875
+1210,389
+1215,215
+214,122
+599,660
+500,254
+8,478
+120,29
+70,809
+373,248
+1235,441
+1293,345
+454,686
+985,469
+1101,478
+765,287
+1029,309
+667,203
+1220,800
+508,285
+65,675
+1078,663
+592,677
+236,122
+462,564
+1042,418
+748,852
+810,254
+718,229
+386,22
+1191,728
+432,872
+392,28
+972,259
+336,416
+1096,480
+415,871
+1241,427
+165,441
+510,673
+750,313
+1255,779
+194,854
+639,107
+281,585
+679,519
+611,644
+497,171
+326,730
+882,456
+403,453
+454,630
+726,227
+383,502
+574,528
+1120,593
+214,256
+165,422
+425,115
+795,323
+673,602
+5,827
+1009,619
+364,194
+75,390
+870,122
+654,449
+62,665
+999,228
+611,508
+87,660
+677,880
+656,449
+681,336
+499,70
+870,638
+119,728
+1185,498
+28,406
+1,796
+334,210
+803,445
+17,345
+58,194
+1310,162
+661,827
+276,649
+679,883
+164,506
+990,236
+82,327
+999,485
+498,208
+1228,119
+529,732
+252,544
+579,403
+808,592
+251,665
+912,602
+502,722
+85,75
+440,122
+755,12
+898,766
+878,22
+924,22
+679,277
+1191,616
+1278,775
+1148,871
+229,37
+957,854
+987,448
+1285,518
+1252,476
+1295,857
+822,285
+731,627
+199,74
+82,775
+1186,299
+954,488
+753,508
+1232,593
+1216,663
+529,284
+795,571
+1118,226
+467,617
+691,36
+181,317
+994,658
+651,894
+1101,754
+763,603
+1088,872
+45,528
+937,224
+1042,470
+1066,648
+1131,95
+738,434
+283,60
+994,302
+1268,865
+795,287
+75,179
+1011,425
+741,75
+773,659
+373,700
+201,479
+649,614
+328,893
+1103,728
+1144,285
+468,45
+857,591
+69,203
+401,339
+579,659
+502,172
+584,891
+802,609
+644,359
+679,11
+1260,201
+194,505
+507,485
+738,350
+170,882
+84,511
+1203,123
+1240,533
+811,70
+736,687
+856,686
+698,417
+726,592
+572,544
+1144,609
+629,376
+1039,840
+455,148
+580,224
+848,778
+684,45
+1265,304
+681,406
+15,228
+172,814
+637,549
+617,610
+1185,610
+1250,275
+107,291
+186,261
+1247,299
+467,123
+350,582
+782,432
+38,505
+843,617
+1184,630
+304,712
+373,221
+534,865
+743,402
+857,620
+671,857
+70,361
+692,252
+338,658
+1121,144
+1258,266
+1058,843
+773,211
+1129,516
+1088,22
+15,86
+343,676
+70,1
+55,794
+691,91
+982,893
+1300,628
+656,162
+262,362
+850,854
+617,284
+977,280
+373,640
+654,221
+484,882
+251,235
+103,639
+1293,292
+1150,525
+758,432
+480,124
+1235,504
+1293,549
+60,275
+1036,317
+512,231
+599,794
+783,148
+350,518
+45,252
+1265,140
+979,448
+706,878
+1203,686
+288,837
+180,138
+572,431
+199,148
+530,408
+711,794
+1302,682
+497,295
+36,549
+201,415
+1009,432
+94,663
+1150,77
+1096,638
+803,87
+211,775
+320,12
+166,609
+629,558
+572,366
+1226,766
+295,789
+195,105
+99,712
+507,87
+242,383
+55,354
+681,558
+1135,313
+192,226
+895,871
+508,609
+1146,394
+281,588
+714,312
+567,234
+283,834
+455,893
+45,140
+691,673
+763,123
+75,715
+820,506
+1285,40
+242,712
+475,1
+453,722
+965,793
+475,212
+201,610
+333,280
+934,103
+570,488
+1126,10
+380,404
+256,332
+818,311
+1179,257
+725,19
+131,49
+947,283
+84,128
+402,798
+544,68
+835,1
+637,345
+846,77
+117,445
+599,107
+755,371
+596,582
+216,93
+32,775
+999,409
+50,693
+184,231
+343,436
+768,17
+507,409
+880,379
+1000,700
+1266,824
+529,675
+119,278
+284,477
+1305,280
+226,582
+353,854
+1238,360
+1048,476
+1079,887
+960,518
+619,445
+530,75
+863,390
+972,770
+759,191
+1235,390
+813,218
+775,728
+199,1
+1283,649
+800,221
+1183,416
+10,87
+199,809
+1272,505
+1099,775
+730,574
+803,436
+10,135
+1118,330
+1186,150
+1200,600
+179,95
+1228,648
+1218,673
+731,403
+780,744
+763,238
+1258,765
+209,140
+572,618
+631,211
+1081,115
+584,592
+432,868
+787,413
+700,518
+555,12
+1265,670
+350,312
+599,659
+90,823
+678,312
+99,523
+455,1
+851,49
+743,660
+714,694
+102,14
+1183,484
+870,548
+242,800
+759,255
+200,712
+110,404
+1190,865
+441,553
+427,289
+577,819
+1198,521
+1022,57
+946,252
+852,117
+535,166
+1146,871
+937,130
+1009,294
+855,746
+301,619
+908,798
+1255,100
+1047,236
+1004,127
+683,649
+596,312
+189,592
+584,85
+107,603
+734,705
+1255,794
+671,37
+316,816
+1183,148
+599,802
+999,555
+131,845
+842,630
+1094,435
+684,493
+1038,257
+17,292
+1208,14
+58,582
+503,691
+338,684
+1225,75
+818,759
+227,289
+649,815
+835,95
+447,838
+468,630
+196,119
+1228,366
+155,70
+927,18
+145,129
+488,285
+1255,660
+338,236
+684,401
+1123,501
+244,210
+44,70
+972,322
+964,333
+190,301
+1260,878
+555,289
+738,17
+574,687
+821,322
+294,119
+1124,261
+8,864
+97,633
+741,560
+401,107
+560,313
+1252,200
+1273,508
+803,485
+25,294
+1193,449
+266,520
+927,100
+848,668
+1300,135
+430,379
+398,809
+1285,376
+70,533
+800,673
+869,553
+552,432
+736,207
+227,658
+202,523
+1096,414
+1300,807
+611,386
+1124,40
+194,768
+786,789
+428,134
+125,610
+301,723
+637,154
+1114,119
+1166,597
+1253,276
+373,757
+842,854
+447,56
+338,592
+1186,819
+412,766
+1042,700
+529,50
+932,130
+914,469
+766,765
+1274,549
+253,555
+55,787
+142,630
+567,423
+1054,292
+584,816
+870,775
+530,744
+560,761
+376,791
+127,746
+142,679
+383,354
+1213,185
+147,458
+619,449
+17,549
+1292,113
+830,115
+1290,711
+579,627
+594,744
+459,49
+17,101
+960,312
+1114,103
+962,331
+510,221
+960,648
+808,40
+1158,854
+453,31
+445,757
+972,722
+82,648
+84,766
+252,350
+656,673
+994,572
+242,576
+438,93
+972,684
+930,765
+810,366
+1245,219
+796,630
+912,85
+851,553
+590,362
+522,768
+1223,471
+912,187
+1000,194
+455,61
+1140,882
+142,862
+440,548
+310,194
+579,267
+335,527
+52,129
+338,572
+52,317
+249,334
+428,456
+1240,592
+649,127
+1235,715
+720,532
+976,236
+855,820
+58,694
+1019,803
+1016,119
+338,302
+360,441
+631,277
+360,119
+388,374
+1054,332
+398,292
+1240,361
+781,675
+199,746
+338,266
+1068,94
+1144,733
+1191,838
+1293,101
+190,593
+572,17
+187,393
+35,673
+604,878
+960,376
+1285,742
+1153,767
+907,229
+1236,171
+74,798
+529,844
+304,742
+1111,509
+1186,75
+330,789
+902,836
+507,807
+594,150
+1150,824
+350,648
+460,374
+637,602
+443,775
+1029,585
+1006,152
+855,74
+989,367
+945,308
+654,673
+599,115
+1148,388
+1185,442
+972,266
+1247,485
+57,618
+1068,383
+160,525
+1006,182
+82,528
+542,877
+189,144
+515,607
+950,329
+335,367
+927,502
+808,722
+790,513
+147,893
+1211,630
+117,683
+1247,261
+380,577
+338,628
+1240,85
+966,194
+85,819
+229,331
+1115,789
+100,57
+534,641
+857,722
+867,551
+15,779
+1226,847
+1101,11
+701,590
+1111,522
+410,246
+679,375
+1275,673
+161,453
+1208,822
+1163,458
+244,684
+169,767
+490,506
+25,40
+1111,677
+20,403
+271,115
+1094,660
+527,333
+92,673
+838,745
+1039,100
+950,791
+1279,161
+401,787
+291,49
+883,68
+644,583
+1138,528
+858,696
+323,448
+840,231
+1150,593
+165,472
+885,709
+1171,123
+1275,91
+410,210
+664,10
+200,182
+363,283
+529,610
+1216,399
+992,478
+1266,70
+194,40
+681,376
+753,277
+857,303
+1006,742
+609,670
+842,712
+1131,767
+579,665
+1109,610
+80,239
+1240,816
+69,427
+557,386
+781,284
+494,824
+160,77
+36,252
+838,149
+325,469
+611,610
+599,0
+612,635
+979,446
+887,887
+974,478
+609,130
+551,479
+345,101
+343,781
+880,462
+726,533
+164,871
+1300,124
+780,408
+627,649
+1246,362
+1200,404
+398,1
+172,528
+994,322
+572,528
+360,775
+380,490
+783,522
+27,649
+1278,329
+1255,110
+27,245
+679,617
+64,362
+58,418
+1230,574
+281,254
+408,126
+701,140
+659,448
+971,721
+766,129
+671,115
+1252,582
+271,840
+957,40
+570,406
+110,490
+634,543
+304,152
+699,610
+1131,212
+1226,511
+296,598
+773,30
+1223,660
+693,586
+84,847
+1208,72
+338,722
+164,785
+924,418
+1240,740
+75,504
+330,105
+455,746
+842,264
+818,358
+
+fold along x=655
+fold along y=447
+fold along x=327
+fold along y=223
+fold along x=163
+fold along y=111
+fold along x=81
+fold along y=55
+fold along x=40
+fold along y=27
+fold along y=13
+fold along y=6
\ No newline at end of file
diff --git a/src/day13/day13Test.txt b/src/day13/day13Test.txt
new file mode 100644
index 0000000..32a8563
--- /dev/null
+++ b/src/day13/day13Test.txt
@@ -0,0 +1,21 @@
+6,10
+0,14
+9,10
+0,3
+10,4
+4,11
+6,0
+6,12
+4,1
+0,13
+10,12
+3,4
+3,0
+8,4
+1,10
+2,14
+8,10
+9,0
+
+fold along y=7
+fold along x=5
\ No newline at end of file