wb3bw vb3b ub3bwf tb3bw sb3b

7k2b 6k2bwf 5k2bw 4k2b 3k2bwf

iu1bwf hu1bw gu1b fu1bwf eu1bw

t30bw s30b r30bwf q30bw p30b

4c0b 3c0bwf 2c0bw 1c0b 0c0bwf