81r4i 91r4im a2r4 b2r4i c2r4im
xss4im yss4 zss4i 0ss4im 1ss4
mjt4 njt4i ojt4im pjt4 qjt4i
bau4i cau4im dau4 eau4i fau4im
00u4im 10u4 20u4i 30u4im 40u4