4re1 3re1qj 2re1q 1re1 0re1qj
f1d1qj e1d1q d1d1 c1d1qj b1d1q
qad1q pad1 oad1qj nad1q mad1
1jc1 0jc1qj zjc1q yjc1 xjc1qj
ctb1qj btb1q atb1 9sb1qj 8sb1q