121r
221ra
321rah
421r
521ra
qt2ra
rt2rah
st2r
tt2ra
ut2rah
fk3rah
gk3r
hk3ra
ik3rah
jk3r
4a4r
5a4ra
6a4rah
7a4r
8a4ra
t14ra
u14rah
v14r
w14ra
x14rah