-ic a-a a-b a-c a-i a-t aaa aab aac aai aam aao aar aas aat aau ab- aba abb abc abi abm abo abr abs abt abu ac- aca acb acc aci acm aco acr acs act acu ai- aia aib aic aii aim aio air ais ait aiu ama amb amc ami amm amo amr ams amt amu aoa aob aoc aoi aom aoo aor aos aot aou ar- ara arb arc ari arm aro arr ars art aru as- asa asb asc asi asm aso asr ass ast asu at- ata atb atc ati atm ato atr ats att atu au- aua aub auc aui aum auo aur aus aut b-u baa bab bac bai bam bao bar bas bat bau bba bbb bbc bbi bbm bbo bbr bbs bbt bbu bca bcb bcc bci bcm bco bcr bcs bct bcu bi- bia bib bic bii bim bio bir bis bit biu bma bmb bmc bmi bmm bmo bmr bms bmt bmu boa bob boc boi bom boo bor bos bot bou bra brb bri brm bro brr brs brt bru bsa bsb bsc bsi bsm bso bsr bss bst bsu bta btb btc bti btm bto btr bts btt btu bua bub buc bui bum buo bur bus but buu c-- caa cab cac cai cam cao car cas cat cau cba cbb cbc cbi cbm cbo cbr cbs cbt cbu cca ccb ccc cci ccm cco ccr ccs cct ccu ci- cia cib cic cii cim cio cir cis cit ciu cma cmb cmc cmi cmm cmo cmr cms cmt cmu co- coa cob coc coi com coo cor cos cot cou cra crb crc cri crm cro crr crs crt cru csa csb csc csi csm cso csr css cst csu cta ctb ctc cti ctm cto ctr cts ctt ctu cua cub cuc cui cum cuo cur cus cut cuu ia- iaa iab iac iai iam iao iar ias iat iau iba ibb ibc ibi ibm ibo ibr ibs ibt ibu ica icb icc ici icm ico icr ics ict icu iia iib iic iii iim iio iir iis iit iiu im- ima imb imc imi imm imo ims imt imu io- ioa iob ioc ioi iom ioo ior ios iot iou ir- ira irb irc iri irm iro irr irs irt iru is- isa isb isc isi ism iso isr iss ist isu ita itb itc iti itm ito its itt itu iu- iua iub iuc iui ium iur ius iut m-o m-r maa mab mac mai mam mao mar mas mat mau mba mbb mbc mbi mbm mbo mbr mbs mbt mbu mc- mca mcb mcc mci mcm mco mcr mcs mct mcu mi- mia mib mic mii mim mio mir mis mit miu mma mmb mmc mmi mmm mmo mmr mms mmt mmu moa mob moc moi mom moo mor mos mot mou mra mrb mrc mri mrm mro mrr mrs mrt mru msa msb msc msi msm mso msr mss mst msu mta mtb mtc mti mtm mto mtr mts mtt mtu mua mub muc mui mum mur mus mut muu o-i oaa oab oac oai oam oao oar oas oat oau ob- oba obb obc obi obm obo obr obs obt obu oc- oca ocb occ oci ocm oco ocr ocs oct ocu oia oib oic oii oim oio oir ois oit oiu om- oma omb omc omi omm omo omr oms omt omu oo- ooa oob ooc ooi oom ooo oor oos oot or- ora orb orc ori orm oro orr ors ort oru os- osa osb osc osi osm oso osr oss ost osu ot- ota otb otc oti otm oto otr ots ott otu ou- oua ouc oui oum ouo our ous out ra- raa rab rac rai ram rao rar ras rat rau rba rbb rbc rbi rbm rbo rbr rbs rbt rbu rca rcb rcc rci rcm rco rcr rcs rct rcu ria rib ric rii rim rio rir ris rit rma rmb rmc rmi rmm rmo rmr rms rmt roa rob roc roi rom roo ror ros rot rou rra rrb rrc rri rrm rrr rrs rrt rru rsa rsb rsc rsi rsm rso rsr rss rst rsu rta rtb rtc rti rtm rto rtr rts rtt rtu rua rub ruc rui rum ruo rur rus rut ruu saa sab sac sai sam sao sar sas sat sau sba sbb sbc sbi sbm sbo sbr sbs sbt sbu sca scb scc sci scm sco scr scs sct scu sia sib sic sii sim sio sir sis sit siu sma smb smc smi smm smo smr sms smt smu soa sob soc soi som soo sor sos sot sou sr- sra srb src sri srm sro srr srs srt ss- ssa ssb ssc ssi ssm sso ssr sss sst ssu sta stb stc sti stm sto str sts stt stu sua sub suc sui sum suo sur sus sut suu taa tab tac tai tam tao tar tas tat tau tba tbb tbc tbi tbm tbo tbr tbs tbt tbu tca tcb tcc tci tcm tco tcr tcs tct tcu tia tib tic tii tim tio tir tis tit tiu tma tmb tmc tmi tmm tmo tmr tms tmt tmu to- toa tob toc toi tom too tor tos tot tou tra trb trc tri trm tro trr trs trt tru tsa tsb tsc tsi tsm tso tsr tss tst tsu tta ttb ttc tti ttm tto ttr tts ttt ttu tua tub tuc tui tum tuo tur tus tut tuu ua- uaa uab uac uai uam uao uar uas uat uau uba ubb ubc ubi ubo ubr ubs ubt ubu uca ucb ucc uci ucm uco ucr ucs uct ucu uia uib uic uii uim uio uir uis uit uiu um- uma umb umc umi umm umo umr ums umt umu uoa uob uoc uom uoo uor uos uot ur- ura urb urc uri urm uro urr urs urt uru usa usb usc