t6fr2 s6fr r6fr2p q6fr2 p6fr
4ffr 3ffr2p 2ffr2 1ffr 0ffr2p
fper2p eper2 dper cper2p bper2
qydr2 pydr oydr2p nydr2 mydr
17cr 07cr2p z7cr2 y7cr x7cr2p