-ic a-a a-c a-i aaa aac aai aam aar aax ac- aca acc aci acm acr acx ai- aia aic aii aim air aix ama amc ami amm amr amx ar- ara arc ari arm arr arx ax- axa axi axm axr axx c-- caa cac cai cam car cax cca ccc cci ccm ccr ccx ci- cia cic cii cim cir cix cma cmc cmi cmm cmr cmx cra crc cri crm crr crx cxc cxi cxr cxx ia- iaa iac iai iam iar ica icc ici icm icr iia iic iii iim iir iix im- ima imc imi imm imx ir- ira irc iri irm irr irx ixc ixi m-r maa mac mai mam mar max mc- mca mcc mci mcm mcr mcx mi- mia mic mii mim mir mix mma mmc mmi mmm mmr mmx mra mrc mri mrm mrr mrx mxa mxc mxi mxr ra- raa rac rai ram rar rax rca rcc rci rcm rcr rcx ria ric rii rim rir rix rma rmc rmi rmm rmr rmx rra rrc rri rrm rrr rxr xaa xac xam xar xci xcr xcx xia xic xii xix xma xmc xmi xmm xmr xmx xrc xrx xxi xxx