657bp8 557bp 457b 357bp8 257bp
hf7bp gf7b ff7bp8 ef7bp df7b
so6b ro6bp8 qo6bp po6b oo6bp8
3x5bp8 2x5bp 1x5b 0x5bp8 zx5bp
e74bp d74b c74bp8 b74bp a74b