1A 2C 3D 4D 5C 6B 7A 8B 9A 10A 11C 12C 13B 14C 15C 16B 17C 18A 19A 20D

1B 2A 3A 4B 5C 6B 7C 8D 9C 10D 11B 12A 13B 14C 15A 16C 17B 18D 19B 20C

1C 2A 3A 4B 5B 6B 7B 8D 9B 10C 11D 12C 13D 14C 15B 16A 17C 18C 19D 20C

A B A B C B C A B B A D C A B D D B C B C B B A B C C A C D C B C C B C D D C C B C B C D D A B D A

B A D A C D A C D D A D B A B A B B D 

A C A D C B A D A A C C B C C B C A A D

D A A C C A C D C D B A B C A C B D B C

C  A  A  B  B  B  B  D  B  C  D  C  D C B A C C D

1A 2B 3A 4B 5C 6B 7C 8A 9B 10D 11A 12D 13C 14A 15B 16D 17D 18B 19C 20B 21C 22B 23B 24A 25B 26C 27C 28A 29C 30D 31C 32B 33 34C 35B 36C 37 38D 39C 40C 41B 42C 43B 44C 45D 46D 47A 48B 49D 50B

1A 2B 3A 4B 5C 6B 7C 8A 9B 10D 11A 12D 13C 14A 15B 16D 17D 18B 19C 20B 21C 22B 23B 24A 25B 26C 27C 28A 29C 30D 31C 32B 33 34C 35B 36C 37 38D 39C 40C 41B 42C 43B 44C 45D 46D 47A 48B 49D 50B

1B 2A 3D 4B 5C 6D 7A 8C 9D 10D 11A 12D 13B 14A 15B 16A 17B 18B 19D 20B

1A 2C 3D 4D 5C 6B 7A 8B 9A 10A 11C 12C 13B 14C 15C 16B 17C 18A 19A 20D

1B 2A 3A 4B5C 6B 7C 8D 9C 10D 11B 12A 13B 14C 15A 16C 17B 18D 19B 20C

1C 2A 3A 4B 5B 6B 7B 8D 9B 10C 11D 12C 13D 14C 15B 16A 17C 18C 19D 20C 

a b a b c b c a b d a d c a b d d b c b c b b a b c c a c d c b c c b c c d d c b c b c d d a b d b

b a d b c a a c d d a d b a b a b b d a

a c c d c b a d a a c c b b c 

b a a c c b c d c d b q b c a 

ab abcd abcde abd abde abcdf abde acdef abcde abcdefg abcdef ad abce ab abcdef abcd abc abc abcd abc acd ac abcd abcd abcd abd bcd abcd cde abcde bce abcd abcde abcde ade abcde acde abcd abdef abd abcde acdef abcd ab abcde acde ce bcd  acde abcde abcde ab bcde cde abc abce abd abce abde abcde abce  abde  abcd abc ac  cd bcd abde ab ac ad

c a a b b b b d b a d c d c b a c c d c