30 24
CAAABCBAACAD AAACCAACAAAAABBCAAAADAD ACCAABBDDAAAAAAAACCAAAADAA ADAAADAAAACAACAADADDCA CAACAAAA AAAAADAADBAAAACAAABA AABBCADBAAAAADAADADDAAAADCAAAA CAADABACADAADBAAAAA AAAAAAAADACC DCADACAAADADD DABCAAAAADDCAAAAAACCAAABA CABBAADAACAABBACAAAAAADAD AAAAACADBAAAAAA BAAADCAAAAAACAABAAAAADADBCDADA AADBADAADAACACDACA CAAAAAAADAAAAAAAAAAACCADCAABDA AAAACAAAAACAA AADAADDAAADAACAADAAAAAA CCABCDCAABDBDACAAABAAA ABAAAAC AAADCCCBAAADAAAC ABAAABAAADDDABAAACCCDAAACAAACA AAAACADDCAAAADCADAB ADAAAABADADACCAACDCAAA 
ADCDAAADBAAB BADBAAAABCDAACCDADAAAAD ACAAAAADCDBAACADCAAAAAAAAA ACAACBBABABABAAAAACAAA AAAAAADB CABAAABDCADAAAABDDCC ABABAABAAADACBDCBBDBACACBDADBA AACDAAADAAAAAAAABBA AADAAAABDBBA DADAAACAAAAAA DADAAAAAAAAAAAAAADDACAADA DADADCAAAAAADAAABCAAADCDA ADAAAAACDABCAAC ACBAAAABABADAAAAABAADBBCAAAACB CAAADCBAAAAAAAAAAA BAAACDDAAAAADAADAAAAADABADAAAA AAAAAACDAADAD ACAABBAAAAAAAAAAAAAAAAB ACAADAADBBABDAAACDDCAA ACACABB AABCCCAACCAAAAAD AAAABAAABACCDAAABACCABBAADACAB BACCAABADAABADAADAA DACADACBACAAABABAACDBA