1x1s
2x1sr
3x1srb
4x1s
5x1sr
qo2sr
ro2srb
so2s
to2sr
uo2srb
ff3srb
gf3s
hf3sr
if3srb
jf3s
453s
553sr
653srb
753s
853sr
tw4sr
uw4srb
vw4s
ww4sr
xw4srb