-ic a-a a-b a-c a-i a-t aaa aab aac aai aam aao aar aat aax ab- aba abb abc abi abm abo abr abt abx ac- aca acb acc aci acm aco acr act acx ai- aia aib aic aii aim aio air ait aix ama amb amc ami amm amo amr amt amx aoa aob aoc aoi aom aoo aor aot aox ar- ara arb arc ari arm aro arr art arx at- ata atb atc ati atm ato atr att atx ax- axa axi axm axo axr axt axx baa bab bac bai bam bao bar bat bax bba bbb bbc bbi bbm bbo bbr bbt bbx bca bcb bcc bci bcm bco bcr bct bcx bi- bia bib bic bii bim bio bir bit bix bma bmb bmc bmi bmm bmo bmr bmt bmx boa bob boc boi bom boo bor bot box bra brb bri brm bro brr brt brx bta btb btc bti btm bto btr btt btx bxb bxi bxm bxo bxx c-- caa cab cac cai cam cao car cat cax cba cbb cbc cbi cbm cbo cbr cbt cbx cca ccb ccc cci ccm cco ccr cct ccx ci- cia cib cic cii cim cio cir cit cix cma cmb cmc cmi cmm cmo cmr cmt cmx co- coa cob coc coi com coo cor cot cox cra crb crc cri crm cro crr crt crx cta ctb ctc cti ctm cto ctr ctt ctx cxc cxi cxo cxr cxt cxx ia- iaa iab iac iai iam iao iar iat iba ibb ibc ibi ibm ibo ibr ibt ibx ica icb icc ici icm ico icr ict iia iib iic iii iim iio iir iit iix im- ima imb imc imi imm imo imt imx io- ioa iob ioc ioi iom ioo ior iot ir- ira irb irc iri irm iro irr irt irx ita itb itc iti itm ito itt itx ixc ixi m-o m-r maa mab mac mai mam mao mar mat max mba mbb mbc mbi mbm mbo mbr mbt mbx mc- mca mcb mcc mci mcm mco mcr mct mcx mi- mia mib mic mii mim mio mir mit mix mma mmb mmc mmi mmm mmo mmr mmt mmx moa mob moc moi mom moo mor mot mox mra mrb mrc mri mrm mro mrr mrt mrx mta mtb mtc mti mtm mto mtr mtt mtx mxa mxc mxi mxr o-i oaa oab oac oai oam oao oar oat oax ob- oba obb obc obi obm obo obr obt obx oc- oca ocb occ oci ocm oco ocr oct ocx oia oib oic oii oim oio oir oit om- oma omb omc omi omm omo omr omt omx oo- ooa oob ooc ooi oom ooo oor oot oox or- ora orb orc ori orm oro orr ort orx ot- ota otb otc oti otm oto otr ott ox- oxa oxb oxc oxi oxo oxt oxx ra- raa rab rac rai ram rao rar rat rax rba rbb rbc rbi rbm rbo rbr rbt rbx rca rcb rcc rci rcm rco rcr rct rcx ria rib ric rii rim rio rir rit rix rma rmb rmc rmi rmm rmo rmr rmt rmx roa rob roc roi rom roo ror rot rox rra rrb rrc rri rrm rrr rrt rta rtb rtc rti rtm rto rtr rtt rtx rxr t-x taa tab tac tai tam tao tar tat tax tba tbb tbc tbi tbm tbo tbr tbt tca tcb tcc tci tcm tco tcr tct tcx tia tib tic tii tim tio tir tit tix tma tmb tmc tmi tmm tmo tmr tmt tmx to- toa tob toc toi tom too tor tot tox tra trb trc tri trm tro trr trt trx tta ttb ttc tti ttm tto ttr ttt ttx txi txt xaa xac xam xar xat xbc xbr xbx xcb xci xcr xcx xia xic xii xio xit xix xma xmc xmi xmm xmo xmr xmt xmx xoa xoc xoi xom xoo xor xot xox xrc xrt xrx xtc xti xtm xtr xtx xxi xxo xxx