7d4w
6d4wir
5d4wi
4d4w
3d4wir
in3wir
hn3wi
gn3w
fn3wir
en3wi
tw2wi
sw2w
rw2wir
qw2wi
pw2w
451w
351wir
251wi
151w
051wir
ff1wir
ef1wi
df1w
cf1wir
bf1wi