c81xiu
d81x
e81xi
f81xiu
g81x
1y2x
2y2xi
3y2xiu
4y2x
5y2xi
qp3xi
rp3xiu
sp3x
tp3xi
up3xiu
fg4xiu
gg4x
hg4xi
ig4xiu
jg4x
464x
564xi
664xiu
764x
864xi