a-a a-b a-c a-t aaa aab aac aak aan aao aar aas aat aau ab- aba abb abc abk abn abo abr abs abt abu ac- aca acb acc ack acn aco acr acs act acu aka akb akc akk akn ako akr aks aku an- ana anb anc ank ann ano anr ans ant anu aoa aob aoc aok aon aoo aor aos aot aou ar- ara arb arc ark arn aro arr ars art aru as- asa asb asc ask asn aso asr ass ast asu at- ata atb atc atn ato atr ats att atu au- aua aub auc auk aun auo aur aus aut b-u baa bab bac bak ban bao bar bas bat bau bba bbb bbc bbk bbn bbo bbr bbs bbt bbu bca bcb bcc bck bcn bco bcr bcs bct bcu bka bkb bkc bkk bkn bko bkr bks bkt bna bnb bnc bnk bnn bno bnr bns bnt bnu boa bob boc bok bon boo bor bos bot bou bra brb brk brn bro brr brs brt bru bsa bsb bsc bsk bsn bso bsr bss bst bsu bta btb btc btk btn bto btr bts btt btu bua bub buc buk bun buo bur bus but buu c-- caa cab cac cak can cao car cas cat cau cba cbb cbc cbk cbn cbo cbr cbs cbt cbu cca ccb ccc cck ccn cco ccr ccs cct ccu cka ckb ckc cko cks ckt cn- cna cnb cnc cnn cno cnr cns cnt cnu co- coa cob coc cok con coo cor cos cot cou cra crb crc crk crn cro crr crs crt cru csa csb csc csk csn cso csr css cst csu cta ctb ctc ctk ctn cto ctr cts ctt ctu cua cub cuc cuk cun cuo cur cus cut cuu k-t ka- kaa kab kac kak kan kao kar kas kat kau kba kbb kbc kbk kbn kbo kbr kbs kbu kca kcb kcc kck kcn kcr kcs kct kcu kkb kkc kkk kkn kkr kks kkt kku kn- kna knc knk knn kno knr knt knu koa kob koc kok kon koo kor kos kot kou kra krc krk krn kro krr krs krt kru ksa ksb ksc ksk ksn kso ksr kss kst ksu kta ktb ktc ktk ktn kto ktr kts ktt ktu kub kuc kuk kun kur kus kut kuu naa nab nac nak nan nao nar nas nat nau nba nbb nbc nbk nbn nbo nbr nbs nbt nbu nca ncb ncc nck ncn nco ncr ncs nct ncu nka nkc nkk nkn nko nkr nks nkt nku nna nnb nnc nnk nnn nno nns nnt nnu no- noa nob noc nok non noo nor nos not nou nra nrb nrc nrk nrn nro nrr nrs nrt nru nsa nsb nsc nsk nsn nso nsr nss nst nsu nta ntb ntc ntk ntn nto ntr nts ntt ntu nua nub nuc nuk nun nuo nur nus nut nuu oaa oab oac oak oan oao oar oas oat oau ob- oba obb obc obk obn obo obr obs obt obu oc- oca ocb occ ock ocn oco ocr ocs oct ocu oka okb okc okk oko okr oks oku on- ona onb onc onk onn ono onr ons ont onu oo- ooa oob ooc ook oon ooo oor oos oot or- ora orb orc ork orn oro orr ors ort oru os- osa osb osc osk osn oso osr oss ost osu ot- ota otb otc otk otn oto otr ots ott otu ou- oua ouc ouk oun ouo our ous out ra- raa rab rac rak ran rao rar ras rat rau rba rbb rbc rbk rbn rbo rbr rbs rbt rbu rca rcb rcc rcn rco rcr rcs rct rcu rkb rkc rkk rko rks rkt rku rna rnb rnc rnn rno rnr rns rnt rnu roa rob roc rok ron roo ror ros rot rou rra rrb rrc rrk rrn rrr rrs rrt rru rsa rsb rsc rsk rsn rso rsr rss rst rsu rta rtb rtc rtk rtn rto rtr rts rtt rtu rua rub ruc ruk run ruo rur rus rut ruu saa sab sac sak san sao sar sas sat sau sba sbb sbc sbk sbn sbo sbr sbs sbt sbu sca scb scc sck scn sco scr scs sct scu sk- ska skb skc skk sko skr sks skt sku sna snb snc snk snn sno snr sns snt snu soa sob soc sok son soo sor sos sot sou sr- sra srb src srk srn sro srr srs srt ss- ssa ssb ssc ssk ssn sso ssr sss sst ssu sta stb stc stk stn sto str sts stt stu sua sub suc suk sun suo sur sus sut suu taa tab tac tak tan tao tar tas tat tau tba tbb tbc tbk tbn tbo tbr tbs tbt tbu tca tcb tcc tck tcn tco tcr tcs tct tcu tka tkb tkc tkk tko tkr tks tkt tna tnb tnc tnk tnn tno tnr tns tnt to- toa tob toc tok ton too tor tos tot tou tra trb trc trk trn tro trr trs trt tru tsa tsb tsc tsk tsn tso tsr tss tst tsu tta ttb ttc ttk ttn tto ttr tts ttt ttu tua tub tuc tuk tun tuo tur tus tut tuu ua- uaa uab uac uak uan uao uar uas uat uau uba ubb ubc ubk ubn ubo ubr ubs ubt ubu uca ucb ucc uck ucn uco ucr ucs uct ucu uka ukb ukc ukk ukn ukr uku un- una unb unc unk unn uno unr uns unt unu uoa uob uoc uok uon uoo uor uos uot ur- ura urb urc urk urn uro urr urs urt uru usa usb usc usk usn uso usr uss ust usu uta utb utc utk utn uto utr uts utt utu uua uuc uun uur uus uut uuu

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