14 37
BAABCBBCBACAC DBBACCBCBCCD DDADCBCAAAA AD ADA BCADCBABDAAABD DAACCDDCBBA ACCADBCAAB D ABCDBADCBACD CDDDAACBDBCBCC CABDBBAADB CABABCACBBCAB DACCC CCBCBDA CCBDCBAB ABCCDDCBA CCCD CDBDDACCAC BC BABBBB BBCCDDDBDBADD BBA DAACB CD DBCDDBCBABA CAADDBCADCC BCAACBDBDDDB BADADDA DCACCCCCD DBBDDCDCAAADC CCCDDDCBAD ACCCCDCD CCDCBCCDBACA DCCD DA D 
BCACABBCCDBAA BDBCCDDDADDB DDAADCCCCDB AD ADA BBBAAAACAADDAB DCBAADDBDDA BAADBAACDD B DDDBDAABBABD ABCCDDDDBCABCC DDADADDACB CAACABDCBACDC DBBDB DBDBDAA BDCCABCA ABCBCBBCD BCCA AAABBBCADC CC DBCBCA AABAAACCDABBD CAA AABAA AC BBCCCBCDBBA BBCBAAADCAD ADCDDBDBAACC BCDDBDB BACBAADCB DBADBDDDDCADC BCDADDBBDB ADDCDBBB ABBADBADACDC BDBC DC B