-er -ic a-a a-c a-i a-t aaa aac aae aai aam aar aat aax ac- aca acc ace aci acm acr act acx aea aec aee aei aem aer aet aex ai- aia aic aie aii aim air ait aix ama amc ame ami amm amr amt amx ar- ara arc are ari arm arr art arx at- ata atc ate ati atm atr att atx ax- axa axe axi axm axr axt axx c-- caa cac cae cai cam car cat cax cca ccc cce cci ccm ccr cct ccx ce- cea cec cee cei cem cer cet cex ci- cia cic cie cii cim cir cit cix cma cmc cme cmi cmm cmr cmt cmx cra crc cre cri crm crr crt crx cta ctc cte cti ctm ctr ctt ctx cxc cxi cxr cxt cxx eaa eac eae eai eam ear eat eax ec- eca ecc ece eci ecm ecr ect ecx eea eec eee eem eer eet eex eia eic eie eii eim eir eit eix em- ema emc eme emi emm emr emt emx era erc ere eri erm err ert eta etc ete eti etm etr ett etx ex- exa exc exe exi exr ext exx ia- iaa iac iae iai iam iar iat ica icc ice ici icm icr ict ie- iea iec iee iei iem ier iet iex iia iic iie iii iim iir iit iix im- ima imc ime imi imm imt imx ir- ira irc ire iri irm irr irt irx ita itc ite iti itm itt itx ixc ixe ixi m-r maa mac mae mai mam mar mat max mc- mca mcc mce mci mcm mcr mct mcx mea mec mee mei mem mer met mex mi- mia mic mie mii mim mir mit mix mma mmc mme mmi mmm mmr mmt mmx mra mrc mre mri mrm mrr mrt mrx mta mtc mte mti mtm mtr mtt mtx mxa mxc mxi mxr ra- raa rac rae rai ram rar rat rax rca rcc rce rci rcm rcr rct rcx re- rea rec ree rei rem rer ret rex ria ric rie rii rim rir rit rix rma rmc rme rmi rmm rmr rmt rmx rra rrc rri rrm rrr rrt rta rtc rte rti rtm rtr rtt rtx rxr t-x taa tac tae tai tam tar tat tax tca tcc tce tci tcm tcr tct tcx te- tea tec tee tei tem ter tet tex tia tic tie tii tim tir tit tix tma tmc tme tmi tmm tmr tmt tmx tra trc tre tri trm trr trt trx tta ttc tte tti ttm ttr ttt ttx txe txi txt xaa xac xam xar xat xci xcr xcx xee xem xer xet xex xia xic xie xii xit xix xma xmc xmi xmm xmr xmt xmx xrc xrt xrx xtc xti xtm xtr xtx xxi xxx