saen raencr qaenc paen oaencr
3jdncr 2jdnc 1jdn 0jdncr zjdnc
etcnc dtcn ctcncr btcnc atcn
p2bn o2bncr n2bnc m2bn l2bncr
0bbncr zbbnc ybbn xbbncr wbbnc