qjirq pjir ojirqc njirq mjir

1shr 0shrqc zshrq yshr xshrqc

c2grqc b2grq a2gr 91grqc 81grq

nbgrq mbgr lbgrqc kbgrq jbgr

ykfr xkfrqc wkfrq vkfr ukfrqc