apkb bpkb3 cpkb3b dpkb epkb3

zflb3 0flb3b 1flb 2flb3 3flb3b

o6lb3b p6lb q6lb3 r6lb3b s6lb

dxmb exmb3 fxmb3b gxmb hxmb3

2nnb3 3nnb3b 4nnb 5nnb3 6nnb3b