mcob ncob3 ocob38 pcob qcob3
b3ob3 c3ob38 d3ob e3ob3 f3ob38
0tpb38 1tpb 2tpb3 3tpb38 4tpb
pkqb qkqb3 rkqb38 skqb tkqb3
ebrb3 fbrb38 gbrb hbrb3 ibrb38