1ts2 0ts2n1 zts2n yts2 xts2n1

c3r2n1 b3r2n a3r2 92r2n1 82r2n

ncr2n mcr2 lcr2n1 kcr2n jcr2

ylq2 xlq2n1 wlq2n vlq2 ulq2n1

9up2n1 8up2n 7up2 6up2n1 5up2n