acg bcggd
bcggd dcg
dcg dede
dede e
e f
f fc
acgbcggddcgdedeefc
f fdbb
acgbcggddcgdedeefcfdbb
f g
g gabb
acgbcggddcgdedeefcfdbbfgabb
acgbcggddcgdedeefcfdbbfgabbg