-ic a-a a-c a-i aaa aac aai aam aao aas aax ac- aca acc aci acm aco acs acx ai- aia aic aii aim aio ais aix ama amc ami amm amo ams amx aoa aoc aoi aom aoo aos aox as- asa asc asi asm aso ass asx ax- axa axi axm axo axs axx c-- caa cac cai cam cao cas cax cca ccc cci ccm cco ccs ccx ci- cia cic cii cim cio cis cix cma cmc cmi cmm cmo cms cmx co- coa coc coi com coo cos cox csa csc csi csm cso css csx cxc cxi cxo cxs cxx ia- iaa iac iai iam iao ias ica icc ici icm ico ics iia iic iii iim iio iis iix im- ima imc imi imm imo ims imx io- ioa ioc ioi iom ioo ios is- isa isc isi ism iso iss ixc ixi m-o maa mac mai mam mao mas max mc- mca mcc mci mcm mco mcs mcx mi- mia mic mii mim mio mis mix mma mmc mmi mmm mmo mms mmx moa moc moi mom moo mos mox msa msc msi msm mso mss msx mxa mxc mxi mxs o-i oaa oac oai oam oao oas oax oc- oca occ oci ocm oco ocs ocx oia oic oii oim oio ois om- oma omc omi omm omo oms omx oo- ooa ooc ooi oom ooo oos oox os- osa osc osi osm oso oss osx ox- oxa oxc oxi oxo oxx saa sac sai sam sao sas sax sca scc sci scm sco scs scx sia sic sii sim sio sis six sma smc smi smm smo sms smx soa soc soi som soo sos sox ss- ssa ssc ssi ssm sso sss ssx sxc sxi sxm sxs xaa xac xam xas xci xcx xia xic xii xio xis xix xma xmc xmi xmm xmo xms xmx xoa xoc xoi xom xoo xos xox xsa xsc xsi xsm xss xxi xxo xxx