acaaaaccbbaccabacacccbbcccacbcbcbabbacaaccabbbbcbaacaccacbcaabbcbaabbbaaacccbaaabcaaabbbcabcabbcbbcaccbbaaaaabbbbcbbcacccbbababccaabababacabcacbcbaccabcabcccbbaccabccbcacbcaaabcbbbccaaaccbcabcbbacbaaccabcabccbacccbcacaaacccbbabcaacccaaabbaccbabacbaacacaabacabbcabbabcccccbcabaabcbbcccccbcbccccbbcacbcbabccbbcbcababacaacbccabbcccaacaabbccabcaaaacbaacaabaacccbbaacaacabbcbbbaacbccabbbccabaabacacbcaaccbaacbcbcbaccababbbbccbbacccbbcabcbabbccbabbbbacaabababccbaabbcacacaabbacbbbaccaaaabbcbaaacacaababccbbaabccbbbcabcbcccbbabccacbccabaacbaaabcbacabbbbbcabccbbacbacbbcbaacbbcaccbcbccbcaaacccacabccaccacbbaacabbcbcbaabccbbabcbabcbbcbabaabacbbbbaaacccaccccbbbbbccbbcbbaaacabbacbbaabbbbabcbaaaaabbabbbcccabcaabbccbbbaacbbbbaabccacacacacaaabbaaccacbaaccbaacbaacaacbacbaaabccbcbaacabcbccaabacacabcccccbbaabcacccccbabaccacccbbcaccabccacaccacbabbbaaacbbbccbbccbabbcccacaccccccccbabbacccbbbccbbaaaccbbbaccbccabacacbbcaccbbcaaaccbaabbbcbbbcbabaabbaabbcacbbacbaaaacbcbcbbccbccbaccbbcbcbcbbaaaacccbbacbccbbbbcbaabbccc