-er a-a a-b a-c a-q a-t aaa aab aac aae aak aan aaq aar aas aat aau ab- aba abb abc abe abk abn abq abr abs abt abu ac- aca acb acc ace ack acn acq acr acs act acu aea aeb aec aee aek aen aeq aer aes aet aeu aka akb akc ake akk akn akr aks aku an- ana anb anc ane ank ann anq anr ans ant anu aqa aqc aqn aqr aqs aqt ar- ara arb arc are ark arn arq arr ars art aru as- asa asb asc ase ask asn asq asr ass ast asu at- ata atb atc ate atn atr ats att atu au- aua aub auc aue auk aun aur aus aut b-u baa bab bac bae bak ban baq bar bas bat bau bba bbb bbc bbe bbk bbn bbq bbr bbs bbt bbu bca bcb bcc bce bck bcn bcq bcr bcs bct bcu be- bea beb bec bee bek ben beq ber bes bet beu bka bkb bkc bke bkk bkn bkq bkr bks bkt bna bnb bnc bne bnk bnn bnr bns bnt bnu bqc bqe bqt bra brb bre brk brn brq brr brs brt bru bsa bsb bsc bse bsk bsn bsr bss bst bsu bta btb btc bte btk btn btq btr bts btt btu bua bub buc bue buk bun bur bus but buu c-- caa cab cac cae cak can caq car cas cat cau cba cbb cbc cbe cbk cbn cbq cbr cbs cbt cbu cca ccb ccc cce cck ccn ccr ccs cct ccu ce- cea ceb cec cee cek cen ceq cer ces cet ceu cka ckb ckc cks ckt cn- cna cnb cnc cne cnn cnr cns cnt cnu cqa cqb cqc cqs cqt cra crb crc cre crk crn crq crr crs crt cru csa csb csc cse csk csn csq csr css cst csu cta ctb ctc cte ctk ctn ctq ctr cts ctt ctu cua cub cuc cue cuk cun cuq cur cus cut cuu eaa eab eac eae eak ean ear eas eat eau eba ebb ebc ebe ebk ebn ebq ebr ebs ebt ebu ec- eca ecb ecc ece eck ecn ecq ecr ecs ect ecu eea eeb eec eee eek een eer ees eet eka ekb ekc eke ekr eks ekt eku en- ena enb enc ene enk enn enr ens ent enu eqa eqe eqn eqq eqs eqt equ era erb erc ere erk ern erq err ers ert eru es- esa esb esc ese esk esn esq esr ess est esu eta etb etc ete etk etn etr ets ett etu eu- eua eub euc eue eun eur eus eut k-t ka- kaa kab kac kae kak kan kar kas kat kau kba kbb kbc kbe kbk kbn kbr kbs kbu kca kcb kcc kce kck kcn kcr kcs kct kcu ke- kea keb kec kee kek ken ker kes ket kkb kkc kke kkk kkn kkr kks kkt kku kn- kna knc kne knk knn knr knt knu kqa kra krc krk krn krr krs krt kru ksa ksb ksc kse ksk ksn ksr kss kst ksu kta ktb ktc kte ktk ktn ktr kts ktt ktu kub kuc kue kuk kun kur kus kut kuu naa nab nac nae nak nan nar nas nat nau nba nbb nbc nbe nbk nbn nbr nbs nbt nbu nca ncb ncc nce nck ncn ncr ncs nct ncu ne- nea neb nec nee nek nen ner nes net neu nka nkc nke nkk nkn nkr nks nkt nku nna nnb nnc nne nnk nnn nns nnt nnu nqc nqs nqt nra nrb nrc nre nrk nrn nrr nrs nrt nru nsa nsb nsc nse nsk nsn nsr nss nst nsu nta ntb ntc nte ntk ntn ntq ntr nts ntt ntu nua nub nuc nue nuk nun nuq nur nus nut nuu qaa qac qan qar qas qat qau qba qbc qbe qbq qbs qca qcc qcs qct qec qee qen qet qnb qne qnk qns qqk qqq qqu qra qrb qrc qre qrs qrt qru qsa qsc qsr qst qta qtc qtq qtr qts qu- qua que qur qus qut ra- raa rab rac rae rak ran raq rar ras rat rau rba rbb rbc rbe rbk rbn rbr rbs rbt rbu rca rcb rcc rce rcn rcr rcs rct rcu re- rea reb rec ree rek ren req rer res ret reu rkb rkc rke rkk rks rkt rku rna rnb rnc rnn rnr rns rnt rnu rqc rqn rqs rra rrb rrc rrk rrn rrq rrr rrs rrt rru rsa rsb rsc rse rsk rsn rsq rsr rss rst rsu rta rtb rtc rte rtk rtn rtq rtr rts rtt rtu rua rub ruc rue ruk run rur rus rut ruu saa sab sac sae sak san saq sar sas sat sau sba sbb sbc sbe sbk sbn sbq sbr sbs sbt sbu sca scb scc sce sck scn scr scs sct scu se- sea seb sec see sek sen seq ser ses set seu sk- ska skb skc ske skk skq skr sks skt sku sna snb snc sne snk snn snr sns snt snu sqa sqn sqq sqr sqs sr- sra srb src sre srk srn srq srr srs srt ss- ssa ssb ssc sse ssk ssn ssq ssr sss sst ssu sta stb stc ste stk stn stq str sts stt stu sua sub suc sue suk sun suq sur sus sut suu taa tab tac tae tak tan taq tar tas tat tau tba tbb tbc tbe tbk tbn tbr tbs tbt tbu tca tcb tcc tce tck tcn tcr tcs tct tcu te- tea teb tec tee tek ten teq ter tes tet teu tka tkb tkc tke tkk tkr tks tkt tna tnb tnc tne tnk tnn tnq tnr tns tnt tra trb trc tre trk trn trq trr trs trt tru tsa tsb tsc tse tsk tsn tsq tsr