xteab0
ytea
zteab
0teab0
1tea
mkfa
nkfab
okfab0
pkfa
qkfab
bbgab
cbgab0
dbga
ebgab
fbgab0
01gab0
11ga
21gab
31gab0
41ga
psha
qshab
rshab0
ssha
tshab