10
AHDFFFFFFFEFFFFFFFFEFFFFFFFFG
ABAHCDFFFFFFFFDFFFFFFFFDFG
ABBAHCEFFFFFDFFG
ABAHCEFFFFFFEFFG
ABACDFFFFG
ABAHCCDFFFFG
AAHCEFFFFFFFEFG
ABADFFFGCCEFFFFFFEFG
AEFFFFFFEFGCDFFFFFFEFFFFFFFFEFFFFFFFG
AEFFFGCEFFFFFFFEFFFFFFGG
