-ic a-a a-b a-c a-i a-t aaa aab aac aai aao aar aas aat aau ab- aba abb abc abi abo abr abs abt abu ac- aca acb acc aci aco acr acs act acu ai- aia aib aic aii aio air ais ait aiu aoa aob aoc aoi aoo aor aos aot aou ar- ara arb arc ari aro arr ars art aru as- asa asb asc asi aso asr ass ast asu at- ata atb atc ati ato atr ats att atu au- aua aub auc aui auo aur aus aut b-u baa bab bac bai bao bar bas bat bau bba bbb bbc bbi bbo bbr bbs bbt bbu bca bcb bcc bci bco bcr bcs bct bcu bi- bia bib bic bii bio bir bis bit biu boa bob boc boi boo bor bos bot bou bra brb bri bro brr brs brt bru bsa bsb bsc bsi bso bsr bss bst bsu bta btb btc bti bto btr bts btt btu bua bub buc bui buo bur bus but buu c-- caa cab cac cai cao car cas cat cau cba cbb cbc cbi cbo cbr cbs cbt cbu cca ccb ccc cci cco ccr ccs cct ccu ci- cia cib cic cii cio cir cis cit ciu co- coa cob coc coi coo cor cos cot cou cra crb crc cri cro crr crs crt cru csa csb csc csi cso csr css cst csu cta ctb ctc cti cto ctr cts ctt ctu cua cub cuc cui cuo cur cus cut cuu ia- iaa iab iac iai iao iar ias iat iau iba ibb ibc ibi ibo ibr ibs ibt ibu ica icb icc ici ico icr ics ict icu iia iib iic iii iio iir iis iit iiu io- ioa iob ioc ioi ioo ior ios iot iou ir- ira irb irc iri iro irr irs irt iru is- isa isb isc isi iso isr iss ist isu ita itb itc iti ito its itt itu iu- iua iub iuc iui iur ius iut o-i oaa oab oac oai oao oar oas oat oau ob- oba obb obc obi obo obr obs obt obu oc- oca ocb occ oci oco ocr ocs oct ocu oia oib oic oii oio oir ois oit oiu oo- ooa oob ooc ooi ooo oor oos oot or- ora orb orc ori oro orr ors ort oru os- osa osb osc osi oso osr oss ost osu ot- ota otb otc oti oto otr ots ott otu ou- oua ouc oui ouo our ous out ra- raa rab rac rai rao rar ras rat rau rba rbb rbc rbi rbo rbr rbs rbt rbu rca rcb rcc rci rco rcr rcs rct rcu ria rib ric rii rio rir ris rit roa rob roc roi roo ror ros rot rou rra rrb rrc rri rrr rrs rrt rru rsa rsb rsc rsi rso rsr rss rst rsu rta rtb rtc rti rto rtr rts rtt rtu rua rub ruc rui ruo rur rus rut ruu saa sab sac sai sao sar sas sat sau sba sbb sbc sbi sbo sbr sbs sbt sbu sca scb scc sci sco scr scs sct scu sia sib sic sii sio sir sis sit siu soa sob soc soi soo sor sos sot sou sr- sra srb src sri sro srr srs srt ss- ssa ssb ssc ssi sso ssr sss sst ssu sta stb stc sti sto str sts stt stu sua sub suc sui suo sur sus sut suu taa tab tac tai tao tar tas tat tau tba tbb tbc tbi tbo tbr tbs tbt tbu tca tcb tcc tci tco tcr tcs tct tcu tia tib tic tii tio tir tis tit tiu to- toa tob toc toi too tor tos tot tou tra trb trc tri tro trr trs trt tru tsa tsb tsc tsi tso tsr tss tst tsu tta ttb ttc tti tto ttr tts ttt ttu tua tub tuc tui tuo tur tus tut tuu ua- uaa uab uac uai uao uar uas uat uau uba ubb ubc ubi ubo ubr ubs ubt ubu uca ucb ucc uci uco ucr ucs uct ucu uia uib uic uii uio uir uis uit uiu uoa uob uoc uoo uor uos uot ur- ura urb urc uri uro urr urs urt uru usa usb usc usi uso usr uss ust usu uta utb utc uti uto utr uts utt utu uua uuc uur uus uut uuu

-ous a-ii aaaa aaab aaac aaai aaar aaas aaba aabb aabc aabi aabt aaca aacb aacc aaci aaco aacr aacs aact aacu aaib aaic aaii aais aaoo aara aarc aari aaro aars aart aaru aasa aasc aasi aass aast aasu aata aatc aatt aaus abaa abab abac abai abar abas abat abau abb- abba abbb abbi abbo abbr abbs abbt abca abcb abcc abci abcr abcs abct abia abib abic abir abis abit abiu aboa abob aboo abor abos abot abou abra abrc abri abro abrs abs- absa absi abss absu abta abts abtu abua abus abut ac-t acaa acab acac acai acar acas acat acba acca accc acci acco accs acct accu aci- acia acic acir acis acoa acor acos acot acou acr- acra acrc acri acro acrr acrs acsa acsc acsi acss acst acta actc acti acto acts actt actu acu- acuo acur acus acut aiai aias aiba aibo aica aicc aicr aics aiia aiib aiic aiir aioc aioi aira airi airo airs airt aisa aisb aisi aiso aisr aist aita aiti aitr aits aitt aitu aiui aoba aoca aocs aora aorb aors aort aoss aotc aous aout arab arac arai arar aras arat arau arba arbi arbs arc- arca arci arco arcs arct aria arib arii ario aris arit aroa arob aroi aroo aror aros arr- arra arrc arri arro arrr arrs arrt arru ars- arsa arsc arsi arso arst arsu arta artc arti arto artr arts arua arub arui arut asaa asab asac asai asao asar