-th a-a a-b a-c a-t aaa aab aac aad aah aar aat aau ab- aba abb abc abd abh abr abt abu ac- aca acb acc acd ach acr act acu ad- ada adb adc add adh adr adt adu aha ahb ahc ahd ahh ahr aht ahu ar- ara arb arc ard arh arr art aru at- ata atb atc atd ath atr att atu au- aua aub auc aud auh aur aut b-u baa bab bac bad bah bar bat bau bba bbb bbc bbd bbh bbr bbt bbu bca bcb bcc bcd bch bcr bct bcu bda bdb bdc bdd bdh bdr bdt bdu bha bhb bhc bhd bhh bhr bht bhu bra brb brd brh brr brt bru bta btb btc btd bth btr btt btu bua bub buc bud buh bur but buu c-- caa cab cac cad cah car cat cau cba cbb cbc cbd cbh cbr cbt cbu cca ccb ccc ccd cch ccr cct ccu cda cdb cdc cdd cdh cdr cdt cdu ch- cha chb chc chd chh chr cht chu cra crb crc crd crh crr crt cru cta ctb ctc ctd cth ctr ctt ctu cua cub cuc cud cuh cur cut cuu daa dab dac dad dah dar dat dau dba dbb dbc dbd dbh dbr dbt dbu dca dcb dcc dcd dcr dct dcu dda ddb ddc ddd ddh ddr ddt ddu dh- dha dhb dhc dhd dhh dhr dht dhu dra drb drc drd drr drt dru dta dtb dtc dtd dth dtr dtt dtu dua dub duc dud duh dur dut haa hab hac had hah har hat hau hba hbb hbc hbd hbh hbr hbt hbu hca hcb hcc hcd hch hcr hct hda hdb hdc hdd hdh hdr hdt hdu hha hhb hhc hhd hhh hhr hht hhu hr- hra hrb hrc hrd hrh hrr hrt hru hta htb htc htd hth htr htt hua hub huc hud huh hur hut huu ra- raa rab rac rad rah rar rat rau rba rbb rbc rbd rbh rbr rbt rbu rca rcb rcc rcd rch rcr rct rcu rda rdb rdc rdd rdh rdr rdt rdu rh- rha rhb rhc rhd rhh rhr rht rhu rra rrb rrc rrd rrh rrr rrt rru rta rtb rtc rtd rtr rtt rtu rua rub ruc rud ruh rur rut ruu taa tab tac tad tah tar tat tau tba tbb tbc tbd tbh tbr tbt tbu tca tcb tcc tcd tch tcr tct tcu tda tdb tdc tdd tdh tdr tdt tdu th- tha thb thc thd thh thr tht thu tra trb trc trd trh trr trt tru tta ttb ttc ttd tth ttr ttt ttu tua tub tuc tud tuh tur tut tuu ua- uaa uab uac uad uah uar uat uau uba ubb ubc ubh ubr ubt ubu uca ucb ucc ucd uch ucr uct ucu uda udb udc udd udr udt udu uha uhb uhc uhd uhh uhr uht uhu ur- ura urb urc urd urr urt uru uta utb utc utd uth utr utt utu uua uuc uur uut uuu

a-ha aaaa aaab aaac aaad aaah aaar aaba aabb aabc aabd aabh aabt aaca aacb aacc aacd aach aacr aact aacu aada aadc aadt aadu aaha aara aarc aard aart aaru aata aatc aatt abaa abab abac abad abar abat abau abb- abba abbb abbr abbt abca abcb abcc abcd abch abcr abct abda abdu abha abhr abra abrc abta abtu abua abud abut ac-t acaa acab acac acad acar acat acba acca accc accd acch acct accu acda acdb acdc acdt acha achh achr acht achu acr- acra acrc acrr acta actc acth actt actu acu- acur acut adaa adab adac adad adah adar adat adba adbc adcc adda addc addd addr addu adha adhd adhu adra adta adua adub adur ahab ahac ahad ahah ahar ahat ahau ahha ahra ahrc ahrr ahta ahua arab arac arad arah arar arat arau arba arbh arc- arca arch arct arda ardc ardu arh- arr- arra arrc arrh arrr arrt arru arta artc arth artr arua arub arud arut at-t ataa atab atac atad atar atat atca atcc atch atcr atdt atha atra atrc atru atta attr attu atua atub atuc atur auaa auca auch auct audc audh auht aur- aura aurd aut- auth baaa baad baah baar baat baba babb babr babu bac- baca bacc bach bact bada badb badd badh badr badu baha bahr baht bahu bar- bara barb barc bard barh barr bart baru bata batc bath batt batu bau- baud baur bbad bbau bbbb bbch bbdd bbrc bcaa bcar bcat bcbc bcca bccc bcda bchd bcra bcru bctc bcuc bd-r bdbc bddc bddh bhar bhat bhca bhcc bhra bhrt bhur bhut bhuu brab brac brad brah brat brau brca brcb brda brdt brrr brtc bruc brud bruh brut btaa btcc btdt btrc btrt bttb buad buar buat buba bubb bubu buca bucc buch bucu buda budb budd budu buha buhr bur- bura burb burd burh burr burt buru but- buta butt c-cd caaa caab caac caah caat caba cabu cac- caca cacc cach cacr cada cadc cadd cadr cadu caha caht cara carb carc card carr cart cat- cata catb catc catd cath catt catu cauc caut cbac cbar cbat cbbc cbca cbcc cbcr cbct cbcu cbdb cbdc cbha cbrd cbrh cbrt cbta cbtc ccaa ccab ccac ccad ccar ccat ccba ccbc ccca cccb cccc cccu ccdc ccdh ccdr ccha cchr ccra ccrc ccrt cctb cctc cctt ccuc ccut cd-r cdaa cdac cdad cdba cdda cddb cddr chaa chab chac chad chah char chat chau chca chch chha chra chrb chrc chrd chrr chrt chtr chtt chua chub chud chur chut crab crac crar crat crau crbc crbu crca crcc crcr crda crdc crrt crtc crub crud crut ctab ctba ctca ctrc ctta cuau cub- cuba cubb cuca cucc cuda cura curb curd curr curt cut- cuta cutc cuth cutt daab daad daar daau daba dabb dabt dabu daca