The deck looks like this.

The . is a random byte guaranteed to not be a card value, which is a legal value IN THE RIGHT PLACE.

For example, only the first card has hexadecimal 10 in the first byte. The software checks.

10...............................................................
.20..............................................................
..30.............................................................
...40............................................................
....50...........................................................
.....60..........................................................
......70.........................................................
.......80........................................................
........90.......................................................
.........A0......................................................
..........B0.....................................................
...........C0....................................................
............D0...................................................
.............11..................................................
..............21.................................................
...............31................................................
................41...............................................
.................51..............................................
..................61.............................................
...................71............................................
....................81...........................................
.....................91..........................................
......................A1.........................................
.......................B1........................................
........................C1.......................................
.........................D1......................................
..........................12.....................................
...........................22....................................
............................32...................................
.............................42..................................
..............................52.................................
...............................62................................
................................72...............................
.................................82..............................
..................................92.............................
...................................A2............................
....................................B2...........................
.....................................C2..........................
......................................D2.........................
.......................................13........................
........................................23.......................
.........................................33......................
..........................................43.....................
...........................................53....................
............................................63...................
.............................................73..................
..............................................83.................
...............................................93................
................................................A3...............
.................................................B3..............
..................................................C3.............
...................................................D3............

A mask was created and these are the 52 cards after masking, sorted.

Please find the mask.

0 10432D89D9288625826AA7BFDF8F9C6139E981D8AF2F5456A6D11135D87EBE08D5E27EBD8C04F8A1FF38E045E2FAFF791F8146F3DD6E1C6DA4968FA0ED547477
1 10AD47157AE669081428D475DE5AAEF09BEF70EDCBB30AE08A7239FCCA08D07417A05F06FA7F0E2B570AFA601115DBEB2F4C41B9CD7DC8D6C1B1157ACED5D620
2 11177710EDD6D48C5E4D82CCC140F4F18C093661941EF58D601AED51E0481494699A8270517A742FD7ABE710503069D110E6EB07C480C949F25A7D72F979B230
3 1890E0AA455563C3A387541DCF6B4FD6805B5104ED7CC7E5928F7FC8632E63ACF060CE9A2B400E33E2FB69C2E8433E5A8D3AD03E4A93DC99B51F9BECB905D149
4 1A0E9CE1734D1F4AC26E509D8591F46BA70190E0AB7B12AAF90A975A8B2BB05E59D414DD3031EDE314CB2C346E31E244EDC9DF62046119A3FD4C591CBB1D393E
5 1D4CCABD73748A782EC8B0CBC7847FFE2151AED7EDA9F0B275918184C10E6CE4A01EAF639F3F697A38F6C2E2F530FE5525C39E2FB5C50B751477C901239D8EEA
6 1EA5F49C7498ABD896E414BFA9A98CB42901F033B82CD3C96D08C51A0B67973410AEDC4A7D33560583A485A0000571C522111AC5C0D3B4531A274CF8FD8495B5
7 220731AC79741AEB29C556A78C51271DAD667ADBD0DEA662F73EF8C474DE004A76984B07DE893A75A9BBA3B2F3BB13DB9D33B16D506A02701907734DBA8E0828
8 2682DE39CEFEA3E90B0F2E7F35233D260D380DCC31207BBF279E71A8CE06F99FB8B24321189475D467B7C773BEDFB8C6E4907AE7D1418F4E050AD42AE8245B07
9 2AE1B4BE715FCDEC5C520E39D9D31EBC8FF48033C8D3527293AA4C433D950CDE987BEFB810D255A7F14915A2656F25CC4A56CAE0E54737711AEED44885F68602
10 3540A8A3D88357034B42298240B901DE6BFC6114F335374D67F8E5BD6C924B7B2F6BEE82AE24D810254E14466FBB5B2377573ED1DB37402C3696C4DB03DC0528
11 3B4658A84FE0BD071C638C53221B446CEE55AA7DA70CFDC4EA88DB02A33748F082CD87F4B7A60E60B21F888C39C4611E6600028944C68FBD2A9CD5E05743F7C4
12 3D626E6411FCAC57D9C16130BCB3F5DEB3C7E2219073583D43A7449DDA7D809D51F7C21610BF7CB38D3F3240D64B166CF9A0A0DFB1B9C28A1065AECDB015AD77
13 3F11677CFC816511AD66145ABE4B809646C2248AAA7C86A0994E7BD70D82244D4F52504A32FFA7A4761D5AD0730695A67DE7D358783FD0692770A25F3F5455E0
14 4A56CAFE1272B514A526032AC17AEF70F3E01767A0379BAB2AA61398A0C7D059B9BD4F5C8C25AC30942E850B3BB1128AACF3DC728EE2991E2ED984926A17950F
15 4FAFB4558B826F36701FA950EFBFB6547DE680FCAB52D43D84CA06BB1E503AD707E9F00EDCEF87AC06C75C92F0277A35E503E1DDE23D453C387E235A37A12AB5
16 5ABA65E9532D72EAACB6971E9C0D025C04A25E3FC4874BA48A86917BDB9B192D2736D177377C3FC45E0117F534885F9FD05FB4B4F44E454CAFA98E0DBEC4B4FD
17 60FE4638CEFED5D0193501C76D57577C2190C4DF20AD5DB675FE0AA17A8DF476B0FD5C2899C8503D8D249B7D243056C652B5B390AAE4E479D7F15EEC0FA714FA
18 63DD6B5155354EF7AE9E50F7286F3F85961B93227412FCE9CF01D5BA55DA891AEA481C64D654C278B201A562221E58B763ADD804968E41743455EDA92F9EE18A
19 6C054DF36A02E4D71BA7B05E060DEF6D8F3521F5E046EDC02A432C0C8BF8CAEF27AEB35D1BE880EE15F5E46FA47C72DA32D5861C0B4CDB391BBAEFED6BAEA214
20 70920BD0BDF56A48A56FA03A4BAA8A7007C08C53E97C412EAF6C9E443DB4FBEA311EA13F111380B6E31F4D3495061E53CBE8798CE95E11819F73DDAB400427A0
21 71870A94883EA9944EA136700EA1408017ED1D757B26E0B505B4206E26B3095F3696C443901FE45E482ADF3AC094EAA321C73B0BBD2C8786419D766E064B0A03
22 813E2ED802460971C132F2DF79E14E8234DE24A781F51EBA2A7B96893DBE2C6F2AB160D4A9DFB4DD101E83F3CFD9BDCC9AA0EB9105640185842FC11C48D77E05
23 8A07C74CE6D68422C75759E1601E48A1A7517846F063020D305BA06E60FF427A952359690800FC3F4E4C4857F1EBF26C0B515032DAFF1238B375A9DCD298C5EC
24 8D22FE3ACB7009B77B3C94E2F2EF948EFE2FE39C7AB4CE6C0EA555AB122A730394F8A3BE985B3DE2BB00DACDF50437FA9FD7D470B052E401B4B0D6E515FAEB5D
25 944BB5E892C349E825249FD0083AF13DFB431E18DC6F794007C80FAA2357C4B5BED9D8B3C17B50E5715AD3B321343235FC96E9FEB24D9CFCCC2745F53E3CBB69
26 952D9D6F890124FC03F0985BD05E4695445BBC447B6D675B9A3DAB0E6D8C4D09563B397AA46E8912598CF7133EFE415D9AFAE75492E2AD2F0FA1A73A3B799B06
27 9DE0A6E61A07023170557EB6E9E0C274438A08B39165DBF1183FBFAA47F71A689878704B77C8785D0918979C94E3546C349E920FDFEF941552062C37D7976498
28 AFCE8F06E014D989AA6C087774DF15412FCA90B1F864D935FF0B7DBBB7912D79D38E92DF3B18584740E2A84BE7481773EF9A6C90F7345FDAF00DEC46C9F1B86C
29 B018BFD055A1532764F9034E236E806445AD4EBDA0D21019EDFC531D6F1C93E107CBC229860F076F0C158B875FBA4040E8E447F637B3DF3D7C67F502EF0FEA78
30 B77B5461911FF6138F1CCA265B842D1D0EFD8A7FBBE5FDB8ADAC14861CF51C10D9EF2AA595928C5CA3A2B0ACAC9C075BB23CD88E8E6A717ADA9F8865943C6AF0
31 BB2938C8ABFA8B1CAFEF81908EB0411652DE51FE15A5779D67CA99C96A27C47991F76BC7FB261D8EACFF86A7F682EECD18DA5483068FB8922252710625751BBF
32 C11D4F1B3D432B8F75C55CCF25FD40E76CD9F9486E7174D530DB4C40C5D4A6BDB44F7A5D4FE57907D9D5756615249A78F9B5E6738A24EF40381316485F99BA61
33 C222A46EEF7474C74577AD0E7C1174F72484CA5B0ACE22292F32792FB262EB4A1FFFBFBB6CCBA95F34609AA6FFAAB93605631CD549225409E862172670D6DF88
34 C39800D50BF05375A77ECDE4D0C9FD6FD4E96DCB111238A634E2D2A926CC36E54E2A609B8D4B174B6ADCFEDA71CAE09A2E5E70293E5AC157D28E9D800DA7BA6F
35 C4FC9546A286404FC8AAB50F89BA553AE9A34177EE36FB7B9006EAC30B2CC304D23CF8D108AA1C44339DEF967BDBC2D4A207DB5E02CF2ED99179C9F4BD35CE59
36 C93C6B3AAC2A8A708927847FC64519EEBEF7488A4C03E6753A7688AFF3D1E34205C4CA08EB0143922F93413542F61735C6D96F1BCEBACF7A9FACF7443DBABEE6
37 CB68EFC87796210EC273A16304A245638FF0E9B74BAF37190F472FA243D75EE307D7ED02897D2D18BA39E6F8310D42C355389568457787D722378443F2EE759F
38 CF7612EC2341254C1F0BD99075F94FDC9BD953C850754335DF46968ECD239CC3252243546BBD45CCE75A5F26F5374E840F93FC75B2DED80C7E3402B5C998BC8D
39 D3340D288737A8E06E57503229C61E24AF87AE0738539C554B5611453A1733E3D7184BD919D5DAD4507F17E00C99DCC0651CE4146CC18F11D49EC69D2D13ECC2
40 D4222B65795D47997714AE297EFF2F01058A81203AB026B099F4DE1EF08705E68F142D5DB353AE968CC65231CBC6F912420031D87B2F8743E68AD9C48074373C
41 D7D899C6166D37212F6CBC0928AF715054006133E1F46FC46060EF75AE412EE88DBA9F4FF664DB6D4BFEF75E022E20260C41E78E009747C4D57058695CF24D83
42 DBFF48871E4248FE48BDED26B3A2D3E9EF105ABD5D0C31AEE661520322CC9FC018C46A3A0E87BF19F3E21545F77C241E83D0D757AB1CFA12096551758F7A697B
43 DCEAE81FA841C56002B1E7A0F22CC9579C5305DE2F2DE2A0E71C951A9AC168C1E205FBB218307CEF94809B8B0A291E6F516E6BA8DB5B470F9E2B46EBC8802F2F
44 DE9B8FD940DC28D8078D203810FC84BE9EAC7FC15975F4E3CBF13D8FE8A95B6BBF78EC6886300E7E16ACD851F1D16A9FA46F21876E50300A2975C8E15F1532F1
45 E00AEFDE032264DBE1B7A1D0138DA85CC9BCBC39CE8C7D5FC89B7C70B142A7BD6782A628D7225AAD04F4B0EA8D72C04D80774258B1EE7BDC0DE68A12EA929BE4
46 E75877C3798F66F28A867D79CD254AAE7F687489C6B79F1552F04BFFE29426C54CC29A7727FA1AB803E44D81BD5B01162A1255C7F1F5AF96269A7CB19D7F2C36
47 EA6798BF1470A8052BFF967AF6C147F7FA6BFE373A39CD8774F792066ECD26FEB726FA0BB2D3526C5FB6A28E6F70A01BE529ABBD912C9B930A393D2D1C42FC4E
48 EAD75DF2A50D9A660BCC92F9ABAFD9C26A0AD9F0EFCC80212A02CEB4011C043C6BF247BD8AE6620AC77A40F48452A53CBB0B689847E402B1CC9691794606DB02
49 EE099C40704AE40F588E0192A2C710F843FE7182E6221BC52FB5B47D73044C1AB22CC0B7ADABBE21FBB0690A977BC30580835BE79DE339607BD6F888C6708A70
50 F63AA26830AEA6E9178BB986D6843EEF14D55E5DB280BD1023801C973050F33792EA17DBA6AD15AF8A83A64E3CFF9E3F8DD773266F17836B83F47E5899B76736
51 F6D10673D23AB9ABF30FE60F32428A3047738A4E2F200C6937F2BB5B46908FA4617CFD0FE84336A04A01F1C5D1E5818560167A8E181C63301D249E6A7B82D424