bx1re
cx1re3
dx1r
ex1re
fx1re3
0n2re3
1n2r
2n2re
3n2re3
4n2r
pe3r
qe3re
re3re3
se3r
te3re
e53re
f53re3
g53r
h53re
i53re3
3v4re3
4v4r
5v4re
6v4re3
7v4r