AAAAABCD
THE_CAT_IN_THE_HAT
PETER_PIPER_PICKED_A_PECK_OF_PICKLED_PEPPERS
SALLY_SELLS_SEASHELLS_DOWN_BY_THE_SEASHORE
AAAAAAAAAAAAAAAAAAAAAAAAAA
ABCDEFGHIJKLMNOPQRSTUVWXYZ
AB
AAB
AAAB
ABC
AABC
AAABC
END