2adum
3adumx
4adu
5adum
6adumx
r1dumx
s1du
t1dum
u1dumx
v1du
gseu
hseum
iseumx
jseu
kseum
5ifum
6ifumx
7ifu
8ifum
9ifumx
u9fumx
v9fu
w9fum
x9fumx
y9fu