iii iim iip iir im- imi imm imp imz ipi ipm ipp ipr ir- iri irm irp irr izi izm izz m-r mi- mii mim mip mir miz mmi mmm mmp mmr mmz mpi mpm mpp mpr mri mrm mrp mrr mrz mzi mzm mzp p-p pii pim pip pir piz pmi pmm pmp pmr pmz ppi ppm ppp ppr ppz pri prm prp prr prz pzm pzp rii rim rip rir riz rmi rmm rmp rmr rpi rpm rpp rpr rpz rri rrm rrp rrr rzm zim zip zir ziz zmm zmp zpi zpm zpp zpr zrp zzr zzz