a3z1
b3z1g
c3z1gy
d3z1
e3z1g
zt01g
0t01gy
1t01
2t01g
3t01gy
ok11gy
pk11
qk11g
rk11gy
sk11
db21
eb21g
fb21gy
gb21
hb21g
2121g
3121gy
4121
5121g
6121gy