41if 31ifvl 21ifv 11if 01ifvl

fbifvl ebifv dbif cbifvl bbifv

qkhfv pkhf okhfvl nkhfv mkhf

1tgf 0tgfvl ztgfv ytgf xtgfvl

c3ffvl b3ffv a3ff 92ffvl 82ffv