-ic a-a a-c a-i aaa aac aai aam aao aar aax ac- aca acc aci acm aco acr acx ai- aia aic aii aim aio air aix ama amc ami amm amo amr amx aoa aoc aoi aom aoo aor aox ar- ara arc ari arm aro arr arx ax- axa axi axm axo axr axx c-- caa cac cai cam cao car cax cca ccc cci ccm cco ccr ccx ci- cia cic cii cim cio cir cix cma cmc cmi cmm cmo cmr cmx co- coa coc coi com coo cor cox cra crc cri crm cro crr crx cxc cxi cxo cxr cxx ia- iaa iac iai iam iao iar ica icc ici icm ico icr iia iic iii iim iio iir iix im- ima imc imi imm imo imx io- ioa ioc ioi iom ioo ior ir- ira irc iri irm iro irr irx ixc ixi m-o m-r maa mac mai mam mao mar max mc- mca mcc mci mcm mco mcr mcx mi- mia mic mii mim mio mir mix mma mmc mmi mmm mmo mmr mmx moa moc moi mom moo mor mox mra mrc mri mrm mro mrr mrx mxa mxc mxi mxr o-i oaa oac oai oam oao oar oax oc- oca occ oci ocm oco ocr ocx oia oic oii oim oio oir om- oma omc omi omm omo omr omx oo- ooa ooc ooi oom ooo oor oox or- ora orc ori orm oro orr orx ox- oxa oxc oxi oxo oxx ra- raa rac rai ram rao rar rax rca rcc rci rcm rco rcr rcx ria ric rii rim rio rir rix rma rmc rmi rmm rmo rmr rmx roa roc roi rom roo ror rox rra rrc rri rrm rrr rxr xaa xac xam xar xci xcr xcx xia xic xii xio xix xma xmc xmi xmm xmo xmr xmx xoa xoc xoi xom xoo xor xox xrc xrx xxi xxo xxx