d1v2 c1v2r7 b1v2r a1v2 90v2r7

oav2r7 nav2r mav2 lav2r7 kav2r

zju2r yju2 xju2r7 wju2r vju2

att2 9st2r7 8st2r 7st2 6st2r7

l2s2r7 k2s2r j2s2 i2s2r7 h2s2r