1x6t
2x6tr
3x6tri
4x6t
5x6tr
qo7tr
ro7tri
so7t
to7tr
uo7tri
ff8tri
gf8t
hf8tr
if8tri
jf8t
458t
558tr
658tri
758t
858tr
tw9tr
uw9tri
vw9t
ww9tr
xw9tri