zrr2y yrr2 xrr2y4 wrr2y vrr2

a1q2 90q2y4 80q2y 70q2 60q2y4

laq2y4 kaq2y jaq2 iaq2y4 haq2y

wjp2y vjp2 ujp2y4 tjp2y sjp2

7so2 6so2y4 5so2y 4so2 3so2y4