-er a-a a-b a-c a-t aaa aab aac aae aak aam aan aar aas aat aau ab- aba abb abc abe abk abm abn abr abs abt abu ac- aca acb acc ace ack acm acn acr acs act acu aea aeb aec aee aek aem aen aer aes aet aeu aka akb akc ake akk akm akn akr aks aku ama amb amc ame amk amm amn amr ams amt amu an- ana anb anc ane ank anm ann anr ans ant anu ar- ara arb arc are ark arm arn arr ars art aru as- asa asb asc ase ask asm asn asr ass ast asu at- ata atb atc ate atm atn atr ats att atu au- aua aub auc aue auk aum aun aur aus aut b-u baa bab bac bae bak bam ban bar bas bat bau bba bbb bbc bbe bbk bbm bbn bbr bbs bbt bbu bca bcb bcc bce bck bcm bcn bcr bcs bct bcu be- bea beb bec bee bek bem ben ber bes bet beu bka bkb bkc bke bkk bkm bkn bkr bks bkt bma bmb bmc bme bmk bmm bmn bmr bms bmt bmu bna bnb bnc bne bnk bnn bnr bns bnt bnu bra brb bre brk brm brn brr brs brt bru bsa bsb bsc bse bsk bsm bsn bsr bss bst bsu bta btb btc bte btk btm btn btr bts btt btu bua bub buc bue buk bum bun bur bus but buu c-- caa cab cac cae cak cam can car cas cat cau cba cbb cbc cbe cbk cbm cbn cbr cbs cbt cbu cca ccb ccc cce cck ccm ccn ccr ccs cct ccu ce- cea ceb cec cee cek cem cen cer ces cet ceu cka ckb ckc ckm cks ckt cma cmb cmc cme cmk cmm cmn cmr cms cmt cmu cn- cna cnb cnc cne cnm cnn cnr cns cnt cnu cra crb crc cre crk crm crn crr crs crt cru csa csb csc cse csk csm csn csr css cst csu cta ctb ctc cte ctk ctm ctn ctr cts ctt ctu cua cub cuc cue cuk cum cun cur cus cut cuu eaa eab eac eae eak eam ean ear eas eat eau eba ebb ebc ebe ebk ebm ebn ebr ebs ebt ebu ec- eca ecb ecc ece eck ecm ecn ecr ecs ect ecu eea eeb eec eee eek eem een eer ees eet eka ekb ekc eke ekr eks ekt eku em- ema emb emc eme emk emm emn emr ems emt emu en- ena enb enc ene enk enm enn enr ens ent enu era erb erc ere erk erm ern err ers ert eru es- esa esb esc ese esk esm esn esr ess est esu eta etb etc ete etk etm etn etr ets ett etu eu- eua eub euc eue eun eur eus eut k-t ka- kaa kab kac kae kak kam kan kar kas kat kau kba kbb kbc kbe kbk kbm kbn kbr kbs kbu kca kcb kcc kce kck kcm kcn kcr kcs kct kcu ke- kea keb kec kee kek kem ken ker kes ket kkb kkc kke kkk kkm kkn kkr kks kkt kku kma kmb kmc kme kmk kmm kms kmt kmu kn- kna knc kne knk knm knn knr knt knu kra krc krk krn krr krs krt kru ksa ksb ksc kse ksk ksm ksn ksr kss kst ksu kta ktb ktc kte ktk ktm ktn ktr kts ktt ktu kub kuc kue kuk kum kun kur kus kut kuu m-r maa mab mac mae mak mam man mar mas mat mau mba mbb mbc mbe mbk mbm mbr mbs mbt mbu mc- mca mcb mcc mce mck mcm mcn mcr mcs mct mcu mea meb mec mee mek mem men mer mes met meu mka mkb mkc mke mkk mkm mkn mkr mks mkt mku mma mmb mmc mme mmk mmm mmn mmr mms mmt mmu mna mnb mnc mne mnk mnm mnn mnr mns mnt mnu mra mrb mrc mre mrk mrm mrn mrr mrs mrt mru msa msb msc mse msk msm msn msr mss mst msu mta mtb mtc mte mtk mtm mtn mtr mts mtt mtu mua mub muc mue muk mum mun mur mus mut muu naa nab nac nae nak nam nan nar nas nat nau nba nbb nbc nbe nbk nbm nbn nbr nbs nbt nbu nca ncb ncc nce nck ncm ncn ncr ncs nct ncu ne- nea neb nec nee nek nem nen ner nes net neu nka nkc nke nkk nkm nkn nkr nks nkt nku nma nmb nmc nme nmk nmm nmn nmr nms nmt nmu nna nnb nnc nne nnk nnm nnn nns nnt nnu nra nrb nrc nre nrk nrm nrn nrr nrs nrt nru nsa nsb nsc nse nsk nsm nsn nsr nss nst nsu nta ntb ntc nte ntk ntm ntn ntr nts ntt ntu nua nub nuc nue nuk num nun nur nus nut nuu ra- raa rab rac rae rak ram ran rar ras rat rau rba rbb rbc rbe rbk rbm rbn rbr rbs rbt rbu rca rcb rcc rce rcm rcn rcr rcs rct rcu re- rea reb rec ree rek rem ren rer res ret reu rkb rkc rke rkk rkm rks rkt rku rma rmb rmc rme rmm rmn rmr rms rmt rna rnb rnc rnm rnn rnr rns rnt rnu rra rrb rrc rrk rrm rrn rrr rrs rrt rru rsa rsb rsc rse rsk rsm rsn rsr rss rst rsu rta rtb rtc rte rtk rtm rtn rtr rts rtt rtu rua rub ruc rue ruk rum run rur rus rut ruu saa sab sac sae sak sam san sar sas sat sau sba sbb sbc sbe sbk sbm sbn sbr sbs sbt sbu sca scb scc sce sck scm scn scr scs sct scu se- sea seb sec see sek sem sen ser ses