t2qgr s2qg r2qgrb q2qgr p2qg

4bqg 3bqgrb 2bqgr 1bqg 0bqgrb

flpgrb elpgr dlpg clpgrb blpgr

quogr puog ouogrb nuogr muog

13ng 03ngrb z3ngr y3ng x3ngrb