-ic a-a a-b a-c a-i a-t aaa aab aac aai aak aar aas aat aau ab- aba abb abc abi abk abr abs abt abu ac- aca acb acc aci ack acr acs act acu ai- aia aib aic aii aik air ais ait aiu aka akb akc aki akk akr aks aku ar- ara arb arc ari ark arr ars art aru as- asa asb asc asi ask asr ass ast asu at- ata atb atc ati atr ats att atu au- aua aub auc aui auk aur aus aut b-u baa bab bac bai bak bar bas bat bau bba bbb bbc bbi bbk bbr bbs bbt bbu bca bcb bcc bci bck bcr bcs bct bcu bi- bia bib bic bii bik bir bis bit biu bka bkb bkc bkk bkr bks bkt bra brb bri brk brr brs brt bru bsa bsb bsc bsi bsk bsr bss bst bsu bta btb btc bti btk btr bts btt btu bua bub buc bui buk bur bus but buu c-- caa cab cac cai cak car cas cat cau cba cbb cbc cbi cbk cbr cbs cbt cbu cca ccb ccc cci cck ccr ccs cct ccu ci- cia cib cic cii cik cir cis cit ciu cka ckb ckc cki cks ckt cra crb crc cri crk crr crs crt cru csa csb csc csi csk csr css cst csu cta ctb ctc cti ctk ctr cts ctt ctu cua cub cuc cui cuk cur cus cut cuu ia- iaa iab iac iai iar ias iat iau iba ibb ibc ibi ibk ibr ibs ibt ibu ica icb icc ici ick icr ics ict icu iia iib iic iii iir iis iit iiu ika ikb ikc iki ikk ikr iks ikt iku ir- ira irb irc iri irk irr irs irt iru is- isa isb isc isi isk isr iss ist isu ita itb itc iti itk its itt itu iu- iua iub iuc iui iur ius iut k-t ka- kaa kab kac kai kak kar kas kat kau kba kbb kbc kbi kbk kbr kbs kbu kca kcb kcc kci kck kcr kcs kct kcu kia kib kic kii kik kir kis kit kiu kkb kkc kki kkk kkr kks kkt kku kra krc kri krk krr krs krt kru ksa ksb ksc ksi ksk ksr kss kst ksu kta ktb ktc ktk ktr kts ktt ktu kub kuc kui kuk kur kus kut kuu ra- raa rab rac rai rak rar ras rat rau rba rbb rbc rbi rbk rbr rbs rbt rbu rca rcb rcc rci rcr rcs rct rcu ria rib ric rii rik rir ris rit rkb rkc rkk rks rkt rku rra rrb rrc rri rrk rrr rrs rrt rru rsa rsb rsc rsi rsk rsr rss rst rsu rta rtb rtc rti rtk rtr rts rtt rtu rua rub ruc rui ruk rur rus rut ruu saa sab sac sai sak sar sas sat sau sba sbb sbc sbi sbk sbr sbs sbt sbu sca scb scc sci sck scr scs sct scu sia sib sic sii sik sir sis sit siu sk- ska skb skc ski skk skr sks skt sku sr- sra srb src sri srk srr srs srt ss- ssa ssb ssc ssi ssk ssr sss sst ssu sta stb stc sti stk str sts stt stu sua sub suc sui suk sur sus sut suu taa tab tac tai tak tar tas tat tau tba tbb tbc tbi tbk tbr tbs tbt tbu tca tcb tcc tci tck tcr tcs tct tcu tia tib tic tii tik tir tis tit tiu tka tkb tkc tkk tkr tks tkt tra trb trc tri trk trr trs trt tru tsa tsb tsc tsi tsk tsr tss tst tsu tta ttb ttc tti ttk ttr tts ttt ttu tua tub tuc tui tuk tur tus tut tuu ua- uaa uab uac uai uak uar uas uat uau uba ubb ubc ubi ubk ubr ubs ubt ubu uca ucb ucc uci uck ucr ucs uct ucu uia uib uic uii uir uis uit uiu uka ukb ukc uki ukk ukr uku ur- ura urb urc uri urk urr urs urt uru usa usb usc usi usk usr uss ust usu uta utb utc uti utk utr uts utt utu uua uuc uur uus uut uuu

a-ak a-ii aaaa aaab aaac aaai aaar aaas aaba aabb aabc aabi aabt aaca aacb aacc aaci aack aacr aacs aact aacu aaib aaic aaii aais aaka aaku aara aarc aari aars aart aaru aasa aasc aasi aass aast aasu aata aatc aatk aatt aaus abaa abab abac abai abak abar abas abat abau abb- abba abbb abbi abbr abbs abbt abca abcb abcc abci abcr abcs abct abia abib abic abir abis abit abiu abra abrc abri abrs abs- absa absi abss absu abta abts abtu abua abuk abus abut ac-t acaa acab acac acai acar acas acat acba acca accc acci accs acct accu aci- acia acic acir acis acks acr- acra acrc acri acrr acrs acsa acsc acsi acss acst acta actc acti acts actt actu acu- acur acus acut aiai aias aiba aica aicc aicr aics aiia aiib aiic aiir aika aiki aiks aira airi airs airt aisa aisb aisi aisk aisr aist aita aiti aitr aits aitt aitu aiui akaa akai akar akas akca akia akik akir akis akiu akka akki akku akr- akra aksa aksi akst aksu akua arab arac arai arak arar aras arat arau arba arbi arbs arc- arca arci arcs arct aria arib arii arik aris arit arka arki arks arr- arra arrc arri arrk arrr arrs arrt arru ars- arsa arsc arsi arsk arst arsu arta artc arti artr arts arua arub arui arut asaa asab asac asai asak asar asas asat asau asba asbu asc- asca ascb ascc asci ascr asct asia asic asii asik asir asis asit aska aski askr asks askt asra asrc asrs asru assa assc assi assk assr asss asst