bn1tb cn1tbh dn1t en1tb fn1tbh

0d2tbh 1d2t 2d2tb 3d2tbh 4d2t

p42t q42tb r42tbh s42t t42tb

ev3tb fv3tbh gv3t hv3tb iv3tbh

3l4tbh 4l4t 5l4tb 6l4tbh 7l4t