4so2 3so2ao 2so2a 1so2 0so2ao

f2n2ao e2n2a d2n2 c2n2ao b2n2a

qbn2a pbn2 obn2ao nbn2a mbn2

1km2 0km2ao zkm2a ykm2 xkm2ao

cul2ao bul2a aul2 9tl2ao 8tl2a