yl0t
zl0to
0l0tol
1l0t
2l0to
nc1to
oc1tol
pc1t
qc1to
rc1tol
c31tol
d31t
e31to
f31tol
g31t
1t2t
2t2to
3t2tol
4t2t
5t2to
qk3to
rk3tol
sk3t
tk3to
uk3tol