1=#C 全程推键，b后松键
(545456)1(6) (545456541)
(545456)1(6) (565455)
(545456)1(6) (56542)
(65454) (65454) (65454)

(4564) 212 (6)323
323(6) 45432
1212 12121(5)1(6)
(4564) 212 (6)323
323(6) 45432
1266 1266122

45 6[21] [21] [21]5
6[21] [21] [21]6
5424 4542 46b76565
45 6[21] [21] [21]
56[21] [21] [21]
65426 54244

45 6[21] [21] [21]5
6[21] [21] [21]6
5424 4542 46b76565
45 6[21] [21] [21]5
6[21] [21] [21]6
5426 54244

45 6[21] [21] [21]
56[21] [21] [21]
6542 4542 46b76565
45 6[21] [21] [21]
56[21] [21] [21]6
5426 54244
26 542 654244

[21]6 [21]6[1] [21]6