2ap2x 3ap2x1 4ap2 5ap2x 6ap2x1

r1p2x1 s1p2 t1p2x u1p2x1 v1p2

gsq2 hsq2x isq2x1 jsq2 ksq2x

5ir2x 6ir2x1 7ir2 8ir2x 9ir2x1

u9r2x1 v9r2 w9r2x x9r2x1 y9r2