diff --git a/README.md b/README.md
index 73af92a..16cfdb5 100644
--- a/README.md
+++ b/README.md
@@ -16,6 +16,7 @@ Advent of Code is an Advent calendar of small programming puzzles by [Eric Wastl
 - Day 12: [Garden Groups](https://adventofcode.com/2024/day/12) -- [Day12.kt](https://github.com/andilau/advent-of-code-2024/blob/main/src/main/kotlin/days/Day12.kt)
 - Day 14: [Restroom Redoubt](https://adventofcode.com/2024/day/14) -- [Day14.kt](https://github.com/andilau/advent-of-code-2024/blob/main/src/main/kotlin/days/Day14.kt)
 - Day 18: [RAM Run](https://adventofcode.com/2024/day/18) -- [Day18.kt](https://github.com/andilau/advent-of-code-2024/blob/main/src/main/kotlin/days/Day18.kt)
+- Day 22: [Monkey Market](https://adventofcode.com/2024/day/22) -- [Day22.kt](https://github.com/andilau/advent-of-code-2024/blob/main/src/main/kotlin/days/Day22.kt)
 
 ### Features
 
diff --git a/src/main/kotlin/days/Day22.kt b/src/main/kotlin/days/Day22.kt
new file mode 100644
index 0000000..97c9e3b
--- /dev/null
+++ b/src/main/kotlin/days/Day22.kt
@@ -0,0 +1,54 @@
+package days
+
+@AdventOfCodePuzzle(
+    name = "Monkey Market",
+    url = "https://adventofcode.com/2024/day/22",
+    date = Date(day = 22, year = 2024)
+)
+class Day22(val input: List<String>) : Puzzle {
+    val secrets = input.map { it.toInt() }
+
+    override fun partOne(): Long {
+        return secrets.sumOf { secret ->
+            generateSequence(secret) { it.next() }
+                .take(2001)
+                .last().toLong()
+        }
+    }
+
+    override fun partTwo(): Int {
+        val seqPriceSums = mutableMapOf<List<Int>, Int>()
+        secrets.forEach { secret ->
+            println("secret = ${secret}")
+            val prices: List<Int> = generateSequence(secret) { it.next() }
+                .take(2001)
+                .map { it.mod(10) }
+                .toList()
+            val sequences = prices
+                .zipWithNext { a, b -> b - a }
+                .windowed(4)
+                .toList()
+            val zip = prices.drop(4).zip(sequences)
+            val seen = mutableSetOf<List<Int>>()
+            for ((price, seq) in zip) {
+                if (seq in seen) continue
+                seen += seq
+                seqPriceSums.compute(seq) { _, v -> v?.plus(price) ?: price }
+            }
+        }
+        return seqPriceSums.values.maxOrNull() ?: 0
+    }
+
+    fun next(nums: List<Int>): List<Int> {
+        return nums.map { it.next() }
+    }
+
+    fun Int.next(): Int {
+        var x = this
+        x = x.xor(x * 64).mod(16777216)
+        x = x.xor(x / 32).mod(16777216)
+        x = x.xor(x * 2048).mod(16777216)
+        return x
+    }
+
+}
\ No newline at end of file
diff --git a/src/main/resources/input_day_22.txt b/src/main/resources/input_day_22.txt
new file mode 100644
index 0000000..fb7ff6c
--- /dev/null
+++ b/src/main/resources/input_day_22.txt
@@ -0,0 +1,1787 @@
+11039925
+7437815
+11477663
+9656683
+13355289
+13392160
+8479502
+8227148
+13059460
+6689101
+13137270
+13039782
+15624590
+2530006
+2060314
+15264131
+2461044
+10484158
+15476464
+3050434
+2087661
+9981434
+12183172
+6657016
+4105536
+7788999
+5596358
+12510123
+11064134
+11023978
+4411436
+6594390
+3956866
+7405223
+1817822
+12488702
+1235906
+15595780
+2284261
+5186708
+15020444
+9805710
+7692974
+10735786
+10743548
+2081109
+13515349
+11548641
+7725841
+3273754
+14578044
+15449304
+8978536
+15289567
+14155389
+5975411
+3828086
+13966599
+1903114
+1425885
+2655669
+3512717
+8137032
+9383408
+12589202
+707459
+12647851
+633476
+13097585
+15859362
+10705087
+12550996
+4308428
+6370576
+2718764
+6528133
+8291809
+16298156
+2053931
+4300030
+4704635
+11678561
+8121759
+12511074
+3344988
+5216962
+12602855
+8818396
+3786818
+12939550
+13681786
+2497934
+3536133
+12783785
+1061645
+3130708
+3077381
+931318
+2992141
+6602255
+3105862
+2500371
+1725902
+2739426
+11379612
+16434679
+9558722
+12497539
+5843686
+293029
+2173085
+11821579
+6073313
+1661320
+4076326
+14684863
+15865101
+11978724
+11965433
+14844830
+5166122
+3241216
+9265732
+8518876
+8889382
+6899662
+1783822
+7861984
+12222944
+15718459
+759094
+7986686
+2545125
+14245419
+10030813
+12423844
+241203
+12279843
+9683834
+4015522
+16005723
+16739423
+384062
+16432093
+9782432
+13895050
+10694407
+15813309
+9944177
+15832276
+5358687
+10798013
+1026136
+12625491
+4112016
+6006644
+11734943
+2919605
+12205327
+6048992
+140579
+6453066
+3141116
+12516803
+8697163
+16077600
+16734600
+1278618
+4884457
+6545053
+13636759
+15807703
+14613398
+10494075
+9120757
+6144757
+7799397
+8390742
+13153243
+5409896
+2111240
+3934749
+10134388
+2122075
+11851065
+9750491
+13919605
+5365990
+8898539
+13086704
+15263941
+4218255
+525033
+11094722
+14930522
+11315381
+5913521
+1692475
+9684855
+282605
+16090598
+14271229
+10281096
+16740442
+6556234
+3338053
+7023796
+16671118
+13642559
+9600951
+9042011
+13109458
+2494137
+10278386
+5189757
+5368904
+8801049
+10218980
+2090494
+3750121
+12249551
+15789074
+9664911
+15815723
+10887041
+5679831
+16674536
+8425430
+10681700
+14609029
+16258974
+8573305
+9793984
+13710557
+14431981
+4453623
+1154537
+1376995
+3615540
+15611820
+507333
+10999619
+11142109
+507363
+16742318
+11857882
+11394539
+9718671
+15975103
+2437295
+12964382
+5468588
+6943933
+9556702
+6703411
+6942719
+13942669
+12198971
+4161623
+1764771
+15839138
+13027949
+456053
+13391449
+8802582
+14100290
+4791183
+11885909
+5287675
+6284671
+3643062
+3372324
+7999530
+13676359
+9177294
+8217887
+1197360
+5669465
+7182221
+15813888
+500742
+1246431
+16411825
+8387619
+14810924
+8601712
+14147225
+13039982
+5309979
+11727374
+7685361
+7061472
+8719477
+2913914
+15468087
+8269940
+3091241
+5678087
+10201947
+723268
+9304700
+5543795
+12581306
+6203815
+9645406
+7514544
+15379761
+505978
+12680322
+8526499
+3905240
+10414777
+8219263
+4602339
+4785525
+14584398
+4868341
+4871274
+15502728
+2043134
+2543811
+4054472
+16178191
+16570209
+4969618
+14825203
+4146204
+1144070
+3329149
+16661834
+2977630
+16309001
+7332665
+16591733
+8388797
+2984661
+15593514
+3153147
+2441496
+15076638
+11896256
+4660798
+6292759
+1722042
+3966983
+11443811
+983815
+6993801
+8858543
+4813092
+2925665
+8363110
+10539460
+5735717
+14291868
+769496
+6483761
+16044430
+4761493
+4059954
+2918512
+2532570
+7134662
+13077161
+10367274
+10086598
+4361973
+10465344
+2677831
+6532382
+8512289
+10437688
+11270839
+15894202
+16149424
+7167082
+7390566
+9194159
+2595553
+247511
+682250
+16007377
+5515230
+13338009
+1566748
+11535889
+7578505
+11301282
+8300524
+16025626
+4660875
+12804231
+6682844
+8743327
+13699286
+8032057
+10530512
+3601243
+11657483
+2377087
+13088128
+10930805
+1413875
+1774023
+9573316
+3072848
+4387420
+1992742
+16589035
+5804323
+3618643
+7567150
+14145326
+8634545
+4791498
+13279188
+1488295
+10817683
+10803024
+10614673
+12847770
+7265579
+16109975
+1424273
+1358764
+15915784
+11041770
+4628003
+4695182
+1145351
+9682396
+3650102
+13817036
+14816943
+9777592
+10918245
+4633263
+6594715
+9530212
+3409098
+10889990
+14783645
+2198400
+15265217
+7957267
+9916985
+12017598
+450215
+7500605
+614076
+7710061
+2605754
+9919786
+16260807
+16430911
+6546533
+9383548
+8524410
+5391981
+11649143
+2568715
+3238572
+15906094
+1849380
+7945062
+7253944
+13398173
+5202193
+9243527
+1676856
+4795868
+15662916
+7790824
+1541345
+2708827
+6469202
+2334945
+6935105
+16059104
+15117059
+12059337
+3707536
+7091418
+6484541
+13940610
+6534931
+10450229
+10185511
+1255479
+9052853
+6567127
+15597111
+10913157
+12627044
+13724787
+427823
+6579185
+12411048
+634185
+16620035
+11987836
+9362043
+8175072
+10805271
+15926554
+15761673
+3853729
+9099637
+12796487
+15709744
+9857434
+10654275
+8142695
+162291
+3723402
+15361304
+375126
+8274683
+7180175
+12227743
+7712942
+2714952
+3880874
+14786466
+2224436
+10674094
+13039999
+5719918
+2937228
+1751210
+1424474
+180079
+7839168
+5495831
+11027152
+3418861
+8910365
+2105329
+14403031
+9963747
+5868254
+8597288
+3963483
+6122302
+822145
+13678741
+2312424
+14459883
+15949322
+159459
+2287109
+1283261
+7255608
+10755573
+7141486
+6947965
+9363110
+12625050
+2181961
+5937463
+6839540
+15140846
+4366821
+5737303
+6975071
+2212297
+16501644
+11228194
+11600644
+13344417
+5010502
+9626053
+1550973
+7951153
+2162256
+1962317
+171245
+11524063
+12895055
+696522
+4910729
+1153359
+7962412
+15335209
+13484362
+4377638
+11246762
+5247333
+4890647
+10315506
+15900836
+428842
+14761882
+16466577
+15874030
+5783890
+13486875
+10620936
+13000879
+9792590
+7486992
+1946810
+4189685
+9979133
+14591387
+4803685
+14096160
+16700761
+3835651
+9223389
+9369484
+11947270
+8851747
+14367633
+5349814
+880080
+4367896
+541263
+9221861
+7811863
+6234062
+10399851
+11472122
+4294206
+7003334
+8112522
+3392229
+3428191
+15598153
+9540782
+7529675
+6128084
+8441165
+14094050
+13848231
+9422197
+9343914
+10522141
+13333162
+3294442
+10879679
+5473324
+9296721
+7865594
+15988587
+14424182
+10959782
+11558253
+1389614
+15035234
+12084637
+12318651
+15494523
+9961678
+10685196
+3387339
+13584558
+13113750
+13988898
+12731561
+12361646
+11835554
+10732200
+6535275
+12171566
+12087089
+2395862
+13970537
+9714542
+16715806
+15664318
+3008302
+8647896
+5293029
+310204
+10080728
+895502
+3289325
+15701908
+5521430
+7267340
+14313017
+630854
+736821
+1976724
+1059878
+16653739
+1196442
+7507348
+16539684
+10541667
+2956888
+1927002
+3626890
+15231356
+3479212
+5519655
+15954845
+395182
+6034357
+6294882
+4886465
+2969308
+12472327
+7549408
+6566792
+4441288
+10715506
+13202101
+9731770
+4612069
+15582665
+10322626
+7585535
+569925
+2423659
+2346667
+12533479
+13401717
+16111594
+16559840
+7599682
+16465987
+14805598
+6286979
+14400882
+8886056
+6490524
+5275211
+6619745
+7447821
+12359198
+1932300
+14145315
+603631
+5040409
+15564895
+8239595
+5699281
+7115785
+7300059
+7435550
+15659015
+1334008
+13884302
+4509342
+6349805
+10851733
+13818066
+14280737
+6609551
+4109702
+12544576
+14270855
+11335869
+7520318
+7656034
+10054266
+14643320
+8887867
+11664361
+15096947
+1623417
+13112738
+4305500
+8981073
+353800
+14897364
+10737902
+15196450
+15567373
+4653080
+3997358
+9783171
+12907439
+7462163
+15818613
+13254700
+11686265
+11982217
+4967152
+8612263
+13966693
+14810566
+2406079
+5602048
+1874337
+11145180
+4558096
+16710785
+15492952
+15167759
+16002596
+6542820
+9816097
+16717760
+7120905
+4848240
+3621915
+9252735
+3204178
+14856302
+1753097
+12569630
+9828072
+16709160
+15160338
+4031766
+13093600
+4045911
+5304330
+16084483
+2560544
+724542
+13453666
+6612131
+13304292
+2939934
+10298389
+9651783
+12839009
+892626
+5893910
+4215724
+4251284
+275543
+14305496
+9123782
+1545195
+10452717
+10055098
+6390343
+11974555
+388136
+4793121
+7896686
+1971373
+5054670
+5665572
+16320532
+6408507
+12958415
+6799523
+1448183
+13027088
+6432197
+7691951
+11719873
+13249231
+8892829
+4987663
+12699785
+3280573
+13754319
+11533979
+3123271
+14739165
+1291109
+3475982
+2240287
+9550936
+11457704
+9881298
+15096905
+14732863
+15580079
+1389571
+8938232
+3748965
+4038502
+14070994
+3206596
+13211275
+11434418
+1126690
+11356888
+3296598
+5605221
+12931053
+10193785
+8665937
+12047479
+14845905
+8078443
+539140
+8440991
+2515111
+13595451
+8679759
+1289998
+8555729
+6747035
+14329218
+3932957
+4920680
+3546526
+12141109
+13284687
+5539109
+304918
+9331866
+14475446
+12736064
+8461580
+14196498
+15932155
+13085504
+13138918
+15913171
+16095678
+14288114
+4074214
+10936078
+9177288
+2878565
+2905930
+2162784
+4739800
+7918095
+15671965
+11253632
+7599138
+1529538
+4189116
+12492238
+2639767
+16657235
+5840998
+15221263
+1855537
+16270404
+805720
+15671761
+13111053
+1938178
+10657421
+8068322
+13232108
+13848971
+10356602
+10592523
+13492492
+12086148
+279026
+13408401
+3326656
+6693912
+12094172
+8994602
+10086443
+7269879
+7146430
+15548137
+8435375
+12117531
+9910533
+13281333
+15828564
+6462967
+8313816
+14075164
+5160008
+3420639
+16182095
+3518570
+457451
+9312347
+12686640
+16429951
+9353848
+780898
+303442
+6515330
+4658011
+1152536
+10472035
+3847280
+2740622
+4927995
+2402304
+8823744
+4880401
+6744079
+3776192
+7246721
+16002666
+6050719
+2103363
+9749662
+11518389
+15928326
+6782281
+2850175
+10952760
+6358707
+1530715
+9016441
+576429
+11847287
+13003953
+13830523
+10652851
+9173233
+1532125
+1003030
+13677230
+7923848
+9641186
+3996260
+12316747
+654680
+155530
+4837986
+431990
+8787151
+8605724
+1867865
+12638496
+15704738
+8280025
+13473335
+16750444
+2945333
+10024764
+2689101
+15809864
+4409143
+8199284
+11216802
+4486714
+5160873
+16727595
+7692303
+12004925
+14287917
+9921158
+5822049
+5188910
+10572502
+11524876
+11410531
+9256163
+13827122
+4737292
+13970192
+11402855
+16662449
+8665139
+2999866
+8086301
+15384314
+7922701
+11298777
+8569762
+14419967
+14452333
+7756711
+8485194
+16745754
+7448059
+10046714
+15333806
+11978146
+11692709
+10102968
+401322
+15010769
+8126210
+9685774
+3113810
+170467
+2871166
+1696706
+11113736
+7719872
+15808420
+10169447
+1001403
+15650674
+7366869
+6377533
+16463258
+15673605
+9202006
+2264666
+4565546
+4798812
+8236248
+12481240
+16535174
+7278267
+15107455
+3424985
+3891720
+4842678
+1010589
+9672917
+15569908
+7809881
+3446939
+8446520
+13595666
+8105518
+11191260
+16129098
+11524376
+7386858
+16114889
+4027512
+7009986
+5814343
+1046737
+8185452
+11184940
+2314140
+8457379
+6498546
+11724199
+7871103
+13214416
+11810931
+8135084
+2362536
+9524368
+5018305
+15765714
+1076495
+579988
+1719104
+9607138
+9136894
+2555513
+11423688
+10170121
+8196236
+14699747
+10042715
+8328460
+2304707
+1437974
+745384
+7521006
+11418655
+7849342
+9264730
+15985193
+10917911
+7223724
+4472720
+8379581
+4323474
+6438398
+16100968
+6979002
+13503770
+689287
+11083570
+5819346
+5388782
+9873563
+1867757
+13328247
+1425074
+14640629
+15545036
+6130860
+1459435
+2395249
+3002625
+15896418
+7739655
+16071443
+11224459
+797059
+8747229
+7465544
+6900161
+7431452
+12915778
+11896634
+14696250
+875832
+9400945
+12668535
+5723176
+12432873
+6421871
+9175122
+7950219
+7410100
+8210150
+14260958
+1460611
+1751390
+10760988
+8059358
+5562585
+6016108
+8868614
+9496979
+6396181
+3390987
+10176663
+2395144
+8082368
+7947582
+13681810
+16444991
+15803165
+3473705
+3925598
+7713142
+1889385
+13450557
+6135911
+9925060
+182973
+16248220
+8032681
+13149248
+11819490
+12203186
+14783255
+10545457
+6256890
+16361555
+8276118
+11927497
+5312354
+11000042
+13718823
+3391120
+3109465
+336215
+4887539
+5544641
+1377997
+6745092
+4446140
+7776157
+10090569
+13427328
+3232539
+15247923
+6824802
+3015281
+15452651
+5987309
+374500
+7636554
+10099173
+4950994
+16034532
+1686344
+13455978
+14098842
+292662
+3154580
+9796645
+4756315
+5233430
+3281438
+11736286
+11271414
+4257168
+11601116
+791992
+9069665
+9322747
+4657808
+4113792
+15979863
+10982170
+7528134
+5996948
+4702013
+6774422
+6786859
+11839833
+11179655
+12050735
+8319848
+10798557
+15742333
+3959725
+5539545
+8023248
+5979103
+9682085
+7337799
+15859320
+14612374
+7515454
+1023364
+10794435
+15058852
+8181406
+16459372
+934682
+9165608
+15531825
+9729561
+14926311
+3239593
+12263421
+14259584
+13035851
+9229984
+14269179
+15062425
+9190832
+15644096
+9016347
+12711002
+2774625
+16678017
+2500007
+12075102
+5917562
+11461649
+8345304
+580075
+170212
+6323751
+14090005
+9059403
+5205549
+4784857
+3211681
+10109687
+193634
+2878277
+4369364
+7506950
+12498459
+10922141
+1528462
+4206209
+13332006
+12828921
+6341225
+10260722
+8858191
+12714858
+10827823
+8008794
+15875282
+4548781
+1475685
+5409554
+3863576
+2030363
+6908961
+14980033
+4767839
+13501612
+15727397
+6858620
+16141808
+15653436
+5862928
+12749180
+8543083
+15127964
+16125852
+2275217
+8233631
+5550492
+2295868
+1556051
+10824297
+3973566
+8848373
+14091423
+1352878
+10133511
+339480
+15945830
+6498465
+13882414
+13514110
+4521245
+12612113
+12012871
+179502
+9460539
+644731
+7669767
+7208103
+15364650
+6755097
+7290094
+9625558
+4584436
+8316952
+6414487
+13951094
+14402938
+5164944
+10167033
+12151004
+15421609
+3925684
+3566989
+11280975
+1360231
+13365278
+4135381
+5695172
+14697263
+1376967
+13887325
+16442989
+12639810
+12553669
+12091089
+14558375
+9589091
+4888675
+12209573
+3599578
+1339804
+13241512
+9654158
+2485867
+11503168
+3611352
+2449133
+3665502
+8826289
+5360350
+13379708
+11699534
+15702211
+9322495
+8945271
+3358750
+5009564
+8677247
+7961052
+5519742
+15611646
+4740932
+14838405
+2908261
+1813639
+14995907
+14102127
+14030022
+13116749
+13220827
+3351246
+16023138
+10398586
+789329
+11261005
+11561460
+160528
+3687709
+4590708
+15265340
+12688128
+10630280
+13983212
+2716688
+11749344
+5208979
+12074571
+8571482
+4564295
+857347
+9946869
+15202316
+3456423
+10103963
+9366967
+12370487
+7562982
+4382219
+15945185
+5968632
+2481535
+5945907
+6042092
+11880097
+4377080
+2056241
+14190837
+16713309
+6956756
+15284185
+5685480
+4383419
+14301370
+8214746
+9724578
+584673
+9111978
+2033931
+386789
+6463655
+5813076
+3200999
+2686686
+13025481
+14839409
+8472909
+6669966
+3987493
+9018870
+2820419
+11317368
+5517685
+6014813
+2345291
+10153435
+1029399
+10622468
+13822353
+14514933
+7795831
+9844901
+2220026
+3111098
+14951214
+1328741
+16357543
+5120779
+5987418
+2500251
+16036426
+15161460
+1678262
+3771579
+7346219
+8357182
+14094015
+13560323
+1304405
+1500163
+11506117
+2378391
+15552506
+6016932
+16680669
+16419992
+5374605
+14979894
+6547643
+8910703
+9711005
+16339312
+10760464
+737589
+3723495
+701402
+12124260
+13332839
+14983046
+13359166
+14124172
+13290612
+3832190
+9438669
+15036829
+3712177
+15534166
+8652981
+755657
+4015184
+9885092
+2783281
+5871064
+9661087
+15503838
+15844737
+5153749
+7892631
+11450342
+10600349
+11625305
+13761307
+10715937
+4558151
+7705107
+497587
+3652859
+7875203
+9701255
+619696
+2844685
+10665345
+3180439
+13434015
+16065813
+13170354
+4978739
+8706258
+1668395
+4054503
+821418
+8115332
+6227869
+13662248
+6550569
+14443397
+8527100
+4488547
+4392612
+10266597
+10417863
+4300552
+7445228
+10903335
+5457991
+1163045
+8884643
+8189121
+8379392
+10999818
+975610
+13729386
+6360590
+1276887
+10256204
+10428576
+12483006
+14671907
+10667374
+15294538
+9249640
+10997898
+5631786
+13921007
+6853267
+4583858
+456039
+16001807
+4556539
+2759266
+13667532
+15463322
+669978
+503565
+551162
+5907738
+11478866
+13677453
+2021173
+9435993
+8732591
+8543143
+973103
+16112545
+15167189
+1592205
+3443910
+2049153
+12591714
+16143010
+9055678
+8962311
+11647876
+5270126
+2630195
+4189423
+4856128
+4273959
+9701634
+10434044
+2872407
+1348579
+12706471
+7551692
+11093063
+9115699
+4675572
+10201617
+2910554
+562401
+3636910
+2271162
+792101
+1814336
+8645004
+10807794
+2529117
+1756102
+7825159
+8910653
+7620131
+5242504
+10264681
+1034975
+9126758
+3059854
+14243820
+6575841
+14918983
+647474
+250121
+6958255
+16444830
+8292391
+1372420
+8218614
+4994600
+7380277
+8703627
+6079720
+12474116
+11731828
+4332927
+15508566
+7264872
+16200761
+13862719
+6704946
+5636245
+12881926
+10971025
+10080555
+8309843
+855626
+16736741
+15440063
+4728356
+5002775
+1579478
+7349257
+6549164
+9545378
+5983233
+4482527
+10511020
+13124824
+6113474
+12804198
+7258122
+13377623
+12327188
+15559273
+16623432
+13116307
+16090560
+11437247
+7893722
+11408959
+7598621
+15824675
+7772566
+8479677
+5838089
+6463595
+3821176
+14915275
+4301881
+366551
+510401
+11298168
+7472871
+3284094
+201042
+3344946
+10427590
+3352382
+13401063
+15861138
+11570287
+8332203
+13602725
+13156011
+4542685
+15062900
+11664417
+2859408
+13518667
+14083727
+3620285
+5309455
+3616126
+6706966
+13541344
+1459159
+12921801
+3881813
+6535231
\ No newline at end of file
diff --git a/src/test/kotlin/SolutionsTest.kt b/src/test/kotlin/SolutionsTest.kt
index 5490130..c5d6e3d 100644
--- a/src/test/kotlin/SolutionsTest.kt
+++ b/src/test/kotlin/SolutionsTest.kt
@@ -20,6 +20,7 @@ class SolutionsTest {
         Day12(InputReader.getInputAsList(12)) to Pair(1464678, 877492),
         Day14(InputReader.getInputAsList(14)) to Pair(214109808L, 7687),
         Day18(InputReader.getInputAsList(18)) to Pair(370, "65,6"),
+        Day22(InputReader.getInputAsList(22)) to Pair(14869099597L, 1717),
     )
         .map { (day, answers) ->
             DynamicTest.dynamicTest("${day.javaClass.simpleName} -> ${answers.first} / ${answers.second}") {
diff --git a/src/test/kotlin/days/Day22Test.kt b/src/test/kotlin/days/Day22Test.kt
new file mode 100644
index 0000000..8e3dbbe
--- /dev/null
+++ b/src/test/kotlin/days/Day22Test.kt
@@ -0,0 +1,53 @@
+package days
+
+import org.assertj.core.api.Assertions.assertThat
+import org.junit.jupiter.api.DisplayName
+import org.junit.jupiter.api.Nested
+import org.junit.jupiter.api.Test
+
+@DisplayName("Day 22")
+class Day22Test {
+    val input = """
+        1
+        10
+        100
+        2024""".trimIndent().lines()
+
+    @Nested
+    @DisplayName("Part 1")
+    inner class Part1 {
+
+        @Test
+        fun `what is the minimum number of steps needed to reach the exit`() {
+            //assertThat(Day22(input).next(input.map { it.toInt() })).isEqualTo(listOf(0, 0, 0, 0))
+            assertThat(Day22(listOf("123")).partOne()).isEqualTo(22)
+        }
+
+        @Test
+        fun `2`() {
+            //assertThat(Day22(input).next(input.map { it.toInt() })).isEqualTo(listOf(0, 0, 0, 0))
+            assertThat(Day22(input).partOne()).isEqualTo(37327623)
+        }
+    }
+
+    @Nested
+    @DisplayName("Part 2")
+    inner class Part2 {
+
+        @Test
+        fun `what is the minimum number of steps needed to reach the exit`() {
+            assertThat(Day22(listOf("123")).partTwo()).isEqualTo(6)
+        }
+
+        @Test
+        fun `what is the minimum number of steps needed to reach the exit 2`() {
+            val input = """
+                1
+                2
+                3
+                2024""".trimIndent().lines()
+            assertThat(Day22(input).partTwo()).isEqualTo(23)
+        }
+    }
+
+}
\ No newline at end of file