5z2r9 4z2r 3z2r90 2z2r9 1z2r

g91r f91r90 e91r9 d91r c91r90

ri1r90 qi1r9 pi1r oi1r90 ni1r9

2r0r9 1r0r 0r0r90 zr0r9 yr0r

d1zr c1zr90 b1zr9 a1zr 90zr90