12i2
22i2t
32i2tx
42i2
52i2t
qtj2t
rtj2tx
stj2
ttj2t
utj2tx
fkk2tx
gkk2
hkk2t
ikk2tx
jkk2
4al2
5al2t
6al2tx
7al2
8al2t
t1l2t
u1l2tx
v1l2
w1l2t
x1l2tx