input.txt

abcccccccaaaaaccccaaaaaaaccccccccccccccccccccccccccccccccccccaaaaa
abaacccaaaaaaccccccaaaaaaaaaaaaaccccccccccccccccccccccccccccaaaaaa
abaacccaaaaaaaccccaaaaaaaaaaaaaacccccccccccccaacccccccccccccaaaaaa
abaacccccaaaaaacaaaaaaaaaaaaaaaacccccccccccccaacccccccccccccacacaa
abaccccccaaccaacaaaaaaaaaacccaacccccccccccccaaacccccccccccccccccaa
abcccccccaaaacccaaaaaaaaacccccccccccccaaacccaaacccccccccccccccccaa
abccccccccaaaccccccccaaaacccccccccccccaaaaacaaaccacacccccccccccccc
abccccccccaaacaaacccccaaacccccccccccccaaaaaaajjjjjkkkcccccaacccccc
abcccccaaaaaaaaaacccccaaccccccccccciiiiiijjjjjjjjjkkkcaaaaaacccccc
abcccccaaaaaaaaacccccccccccccccccciiiiiiijjjjjjjrrkkkkaaaaaaaacccc
abcccccccaaaaaccccccccccccccccccciiiiiiiijjjjrrrrrppkkkaaaaaaacccc
abcccaaccaaaaaacccccccccccaacaaciiiiqqqqqrrrrrrrrpppkkkaaaaaaacccc
abccaaaaaaaaaaaaccccacccccaaaaaciiiqqqqqqrrrrrruuppppkkaaaaacccccc
abcccaaaaaaacaaaacaaacccccaaaaaahiiqqqqtttrrruuuuupppkkaaaaacccccc
abcaaaaaaaccccaaaaaaacccccaaaaaahhqqqtttttuuuuuuuuuppkkkccaacccccc
abcaaaaaaaaccccaaaaaacccccaaaaaahhqqqtttttuuuuxxuuuppkklcccccccccc
abcaaaaaaaacaaaaaaaaaaacccccaaachhhqqtttxxxuuxxyyuuppllllccccccccc
abcccaaacaccaaaaaaaaaaaccccccccchhhqqtttxxxxxxxyuupppplllccccccccc
abaacaacccccaaaaaaaaaaaccccccccchhhqqtttxxxxxxyyvvvpppplllcccccccc
abaacccccccccaaaaaaacccccccccccchhhpppttxxxxxyyyvvvvpqqqlllccccccc
SbaaccccccaaaaaaaaaaccccccccccchhhppptttxxxEzzyyyyvvvqqqlllccccccc
abaaaaccccaaaaaaaaacccccccccccchhhpppsssxxxyyyyyyyyvvvqqqlllcccccc
abaaaacccccaaaaaaaacccccccccccgggpppsssxxyyyyyyyyyvvvvqqqlllcccccc
abaaacccaaaacaaaaaaaccccccccccgggpppsswwwwwwyyyvvvvvvqqqllllcccccc
abaaccccaaaacaaccaaaacccccccccgggppssswwwwwwyyywvvvvqqqqmmmccccccc
abaaccccaaaacaaccaaaaccaaaccccggpppssssswwswwyywvqqqqqqmmmmccccccc
abcccccccaaacccccaaacccaaacaccgggpppssssssswwwwwwrqqmmmmmccccccccc
abcccccccccccccccccccaacaaaaacgggppooosssssrwwwwrrrmmmmmcccccccccc
abcccccccccccccccccccaaaaaaaacggggoooooooorrrwwwrrnmmmdddccaaccccc
abaccccccccccccaacccccaaaaaccccggggoooooooorrrrrrrnmmddddcaaaccccc
abaccccccccaaaaaaccccccaaaaaccccggfffffooooorrrrrnnndddddaaaaccccc
abaacccccccaaaaaacccccaaaaaacccccffffffffoonrrrrrnnndddaaaaaaacccc
abaaccccccccaaaaaaaccacaaaacccccccccffffffonnnnnnnndddaaaaaaaacccc
abccccccccccaaaaaaaaaaaaaaaccccccccccccfffennnnnnnddddccaaaccccccc
abcccccccccaaaaaaacaaaaaaaaaacccccccccccffeennnnnedddccccaaccccccc
abcccccccccaaaaaaccaaaaaaaaaaaccccccccccaeeeeeeeeeedcccccccccccccc
abccccccccccccaaaccaaaaaaaaaaaccccccccccaaaeeeeeeeecccccccccccccaa
abcccccccaaccccccccaaaaaaaacccccccccccccaaaceeeeecccccccccccccccaa
abaaccaaaaaaccccccccaaaaaaaacccccccccccccaccccaaacccccccccccaaacaa
abaaccaaaaacccccaaaaaaaaaaacccccccccccccccccccccacccccccccccaaaaaa
abaccaaaaaaaaccaaaaaaaaaaaaaacccccccccccccccccccccccccccccccaaaaaa