zsq2s ysq2 xsq2sy wsq2s vsq2

a2p2 91p2sy 81p2s 71p2 61p2sy

lbp2sy kbp2s jbp2 ibp2sy hbp2s

wko2s vko2 uko2sy tko2s sko2

7tn2 6tn2sy 5tn2s 4tn2 3tn2sy