uvxuvl tvxuv svxu rvxuvl qvxuv
54wuv 44wu 34wuvl 24wuv 14wu
gewu fewuvl eewuv dewu cewuvl
rnvuvl qnvuv pnvu onvuvl nnvuv
2wuuv 1wuu 0wuuvl zwuuv ywuu