y2sm x2smwn w2smw v2sm u2smwn
9bsmwn 8bsmw 7bsm 6bsmwn 5bsmw
klrmw jlrm ilrmwn hlrmw glrm
vuqm uuqmwn tuqmw suqm ruqmwn
63pmwn 53pmw 43pm 33pmwn 23pmw