s21d r21dtl q21dt p21d o21dtl

3b1dtl 2b1dt 1b1d 0b1dtl zb1dt

el0dt dl0d cl0dtl bl0dt al0d

puzd ouzdtl nuzdt muzd luzdtl

03ydtl z3ydt y3yd x3ydtl w3ydt