ubqvao tbqva sbqv rbqvao qbqva
5kpva 4kpv 3kpvao 2kpva 1kpv
guov fuovao euova duov cuovao
r3nvao q3nva p3nv o3nvao n3nva
2cnva 1cnv 0cnvao zcnva ycnv