a1zr b1zr1 c1zr1b d1zr e1zr1

zr0r1 0r0r1b 1r0r 2r0r1 3r0r1b

oi1r1b pi1r qi1r1 ri1r1b si1r

d91r e91r1 f91r1b g91r h91r1

2z2r1 3z2r1b 4z2r 5z2r1 6z2r1b