b3ocl c3oclb d3oc e3ocl f3oclb
0tpclb 1tpc 2tpcl 3tpclb 4tpc
pkqc qkqcl rkqclb skqc tkqcl
ebrcl fbrclb gbrc hbrcl ibrclb
31rclb 41rc 51rcl 61rclb 71rc