4zuu 3zuub7 2zuub 1zuu 0zuub7

f9tub7 e9tub d9tu c9tub7 b9tub

qitub pitu oitub7 nitub mitu

1rsu 0rsub7 zrsub yrsu xrsub7

c1rub7 b1rub a1ru 90rub7 80rub