02ltlt
12lt
22ltl
32ltlt
42lt
ptmt
qtmtl
rtmtlt
stmt
ttmtl
ekntl
fkntlt
gknt
hkntl
ikntlt
3aotlt
4aot
5aotl
6aotlt
7aot
s1ot
t1otl
u1otlt
v1ot
w1otl