-ic a-a a-c a-i aaa aac aai aam aao aap aar aax ac- aca acc aci acm aco acp acr acx ai- aia aic aii aim aio aip air aix ama amc ami amm amo amp amr amx aoa aoc aoi aom aoo aop aor aox ap- apa apc api apm apo app apr apx ar- ara arc ari arm aro arp arr arx ax- axa axi axm axo axp axr axx c-- caa cac cai cam cao cap car cax cca ccc cci ccm cco ccp ccr ccx ci- cia cic cii cim cio cip cir cix cma cmc cmi cmm cmo cmp cmr cmx co- coa coc coi com coo cop cor cox cpa cpc cpi cpm cpo cpp cpr cpx cra crc cri crm cro crp crr crx cxc cxi cxo cxp cxr cxx ia- iaa iac iai iam iao iap iar ica icc ici icm ico icp icr iia iic iii iim iio iip iir iix im- ima imc imi imm imo imp imx io- ioa ioc ioi iom ioo iop ior ipa ipc ipi ipm ipo ipp ipr ipx ir- ira irc iri irm iro irp irr irx ixc ixi m-o m-r maa mac mai mam mao map mar max mc- mca mcc mci mcm mco mcp mcr mcx mi- mia mic mii mim mio mip mir mix mma mmc mmi mmm mmo mmp mmr mmx moa moc moi mom moo mop mor mox mpa mpc mpi mpm mpo mpp mpr mpx mra mrc mri mrm mro mrp mrr mrx mxa mxc mxi mxp mxr o-i oaa oac oai oam oao oap oar oax oc- oca occ oci ocm oco ocp ocr ocx oia oic oii oim oio oip oir om- oma omc omi omm omo omp omr omx oo- ooa ooc ooi oom ooo oop oor oox op- opa opc opi opm opo opp opr opx or- ora orc ori orm oro orp orr orx ox- oxa oxc oxi oxo oxx p-p paa pac pai pam pao pap par pax pca pcc pci pcm pco pcp pcr pcx pia pic pii pim pio pip pir pix pma pmc pmi pmm pmo pmp pmr pmx poa poc poi pom poo pop por pox ppa ppc ppi ppm ppo ppp ppr ppx pra prc pri prm pro prp prr prx pxc pxm pxr ra- raa rac rai ram rao rap rar rax rca rcc rci rcm rco rcp rcr rcx ria ric rii rim rio rip rir rix rma rmc rmi rmm rmo rmp rmr rmx roa roc roi rom roo rop ror rox rpa rpc rpi rpm rpo rpp rpr rpx rra rrc rri rrm rrp rrr rxp rxr xaa xac xam xap xar xci xcp xcr xcx xia xic xii xio xix xma xmc xmi xmm xmo xmp xmr xmx xoa xoc xoi xom xoo xop xor xox xpa xpc xpm xpo xpp xrc xrx xxi xxo xxp xxx