acabcacabcbbcccccbcaacaaccabbaccccbbbbccacaabcabbcacaabcbbabacacbabccabbaccaaabacabbcacacbabcaaaccbcabbcacccbcccbcbbaaacaacbcacccccbbbcacbcbacaaabcabccccbbaabcabccbbbcbcaaacbbcbbcccbcaccaccaaabaaaccbbacabcacbccaacbbccaaccbbbbcaccbbbbabaacabbacacccccaaaabcabcababcbbcabcaaabcaacaaccccaccaaccbbbcccbcacbaaaaaacabacccabcabaabaacbbbbacbcbbbabacacbbaacccbaacaccabbacabaaaaccbbccaababbcbccbaacbabaabcbbcacbaabaaccbbacbcbbbccbcacbabbcbbbaccacacaacbbbaccbaaacbaaabacacbacabcacacccbaabcabbabccacbcacbabbbbcbcccbccbcabcabcabcaacccbbaaaaaaaaaabacbacaaccacbcbaabbaccccbcccbcaaaabcbcbbbaccbacccbabccacbccbabccaacbcccbabaccbbbbaababcaccabacaacccccccaacacbcabacabcbaaabccbbbcabcaacabcbcbcaccabbbcbbbcababccabbbacbcacbcbccabbbbcbcacccccbaaabbbacabbbbbcbaaabcaacbabcbbacaaccaccbcacababbacababbbbbabbbaccaacaaccaaccacbaaccbaccccaacaaaacbcacaacccaaaaabbababbbbbababcbbaabcacacbccbaaacbcbaccbabaaababaabccacbbabaaabccababbacccaccaccaaaabbbabbacabbaacbcabcbcbccacbbaabbabcccbbbbcbababaaaaabbaaacaabbbcccbbccbabcaaaaccacbccbaabbbacabbccaccaccbbbbcabcbabbaabccabacccbbbcaaaaaccacbcbbcbccacbababbbbacccaaabcbbabbcbbcbaaccbaaccbcacbbbbbcbabbacabbacaaaacacabcaaabcbbaabbaccbbcbbbbcabcccaccbaaccbbabbacbabccbaaccaabcaabbcaccbaacababbbbcbcabccbbcbbccacabbaacacabaaccbcbbcbcccaaacbbcccbaaaacabbbbcacaabcbcccbcacbacacabcabbbbcbabbabbccbabbccbaabbaaccbcbbcbcbcbabacabcacbbbbcccacaacaaabaaaabcccabbacbccccccacbbbbbcabbbbbababaacabbacbacbacabcabacbabccbbcaacbbcbbaccbaabbabbaccaababccaaabbbbabcaaaccaaaaacaaaccababbaccaaacbcbbbabbbbcbbabaccbbcbbbaabcaaabbbcabcccbabccacbaaccbbccaabccaaacabcbbbacacbbbcbccccaacabaaaaccabacccaccabbaaaabaabcabcbabbbcabbccacabacbaacbbbaabacaacaabbbaaacaaababbbbbbbcbcabcacbccaaaaaaabccccabccaacbbabcbcbaaaacbcabaaacbaabcaacbabcbaaaaaacacbaacbbbcccabacbbcabcbaabacaabaabbaccbcbbabbbbccaacacbbbbaaccacaababaabaaacbaacbbbaabbcaaaacbbcacababcaacabbcaaaaacaacaabccacbaaabbbbbbaabcacbaccccccccacaaccaabbbbabcccbbbccccbbbbabccbabbbbacaccccccaaacaaacbcccaaacbaaabcacabacbbbbccabcbcccaccbabbccaabccccbacaaababbbbabcbbbbaaacccbaacbcbbcabcbaacacbbaaaccccabbbccacccabcbbbbaaaacacbabbcabcaaaabcbcbcabbcbccccbbcabcccccbababbbacbabaccabcbabacabcbbcabbbbcbccccbbaaaacbaaccbaaacabcbabcbaabcbbcbbcccbbcbcbaabbbbbacaaababacaabbccbcbabccabcbabcccccbcccbccaaaabcabbbaaacacbcbbcbbcccccbacacaaccbaacaacabbbbabaaabccbbabbabacacbbbbabcbacbaccacbbcaccaaabaaabbbbabacabaacbbcaaabaacccbaaacaaacbccacbaabcbbbbccbcbacaaccbcbcbccacababcaaabbacbcaabccacacaccabaabbbcabbcbbbabcaabaaccbababaaccaabbabbcabbbcbccbaaacccbaabaccbabbbbababaaabcacaccbaaccbccbcaabcbcabaabaccbbbcababcbbcbbbaccabaacababbbabaabbbaaabacccacacacaabcbacccbbcbccaacaabbbccbbcbcabbabbbbbbaacbcbbacaaacbbbaccccbbbcbccbababbabbcacbaaccaacbbcbbacaacabcabbbbccccbccbcbcaabcccbbbabaabcaaaaacccabcacaabbcaabcbcccbcaccacbcabaababcbbaaaacababcabcababcbaabbcbccbabcbaacacbcabacabcbcbbcbbbababcaaaaaabacccabbbcaabaabcacccbbaacbbccaabbcbbbabcbaacacaabcacccaaaacabbcbcaccbbccbcbcbaccaabcbabcbbbaccccacbaaaacaccaacacbbcaccaabcccabcbacbaabbbbccbcccbaaacabbaabcaccbaccbcaacbbacccccbcbbacbcaccacbccbbcacbcccbcccaaccbabababbabcbaabcbaacacbccccababcbcacabbbccaccacbcbbbbccbbbcaacbcacacbacabbcacbcbcbaaacbbaaccbaabbbcbbbabaaacbbacabaabcbbbaaccbcbabbcbbbbaabccaccccbaaccaccccabbbbcaaaccbcccbccacabaaccccacbcbacabcccbbccacaacbbacacbabbaccbaababbaacccababababccacbbbbbbaabcaaccbaccabcabbcabcbccbbabbbacabcacabbacbccbabaccacbcabcccababacbcbbabbcbccacbbababacabcacabcbbcccccbcaacaaccabbaccccbbbbccacaabcabbcacaabcbbabacacbabccabbaccaaabacabbcacacbabcaaaccbcabbcacccbcccbcbbaaacaacbcacccccbbbcacbcbacaaabcabccccbbaabcabccbbbcbcaaacbbcbbcccbcaccaccaaabaaaccbbacabcacbccaacbbccaaccbbbbcaccbbbbabaacabbacacccccaaaabcabcababcbbcabcaaabcaacaaccccaccaaccbbbcccbcacbaaaaaacabacccabcabaabaacbbbbacbcbbbabacacbbaacccbaacaccabbacabaaaaccbbcbbbbabaacabbacacccccaaaabcabcababcbbcabcaaabcaacaaccccaccaaccbbbcccbcacbaaaaaacabacccabcabaabaacbbbbacbcbbbabacacbbaacccbaacaccabbacabaaaaccbb