xu8puv
wu8pu
vu8p
uu8puv
tu8pu
837pu
737p
637puv
537pu
437p
jd7p
id7puv
hd7pu
gd7p
fd7puv
um6puv
tm6pu
sm6p
rm6puv
qm6pu
5v5pu
4v5p
3v5puv
2v5pu
1v5p