yt1t
zt1tc
0t1tc5
1t1t
2t1tc
nk2tc
ok2tc5
pk2t
qk2tc
rk2tc5
cb3tc5
db3t
eb3tc
fb3tc5
gb3t
113t
213tc
313tc5
413t
513tc
qs4tc
rs4tc5
ss4t
ts4tc
us4tc5