ABBBBBBBBACCCCCCCBACDEEEECFACDGHHECFADDGGIECFADIIIIFCFADJKKLFFFAJJJKLLLLAAMMMMMMM
ABBBBBBBB
ACCCCCCCB
ACDEEEECF
ACDGHHECF
ADDGGIECF
ADIIIIFCF
ADJKKLFFF
AJJJKLLLL
AAMMMMMMM