bunwb cunwb4 dunw eunwb funwb4
0kowb4 1kow 2kowb 3kowb4 4kow
pbpw qbpwb rbpwb4 sbpw tbpwb
e2pwb f2pwb4 g2pw h2pwb i2pwb4
3sqwb4 4sqw 5sqwb 6sqwb4 7sqw