-er a-a a-b a-c aaa aab aac aae aaj aak aam aan aar aas aau ab- aba abb abc abe abj abk abm abn abr abs abu ac- aca acb acc ace acj ack acm acn acr acs acu aea aeb aec aee aej aek aem aen aer aes aeu aja ajb ajc aje ajj ajk ajm ajn ajr ajs aju aka akb akc ake akj akk akm akn akr aks aku ama amb amc ame amk amm amn amr ams amu an- ana anb anc ane anj ank anm ann anr ans anu ar- ara arb arc are arj ark arm arn arr ars aru as- asa asb asc ase asj ask asm asn asr ass asu au- aua aub auc aue auj auk aum aun aur aus b-u baa bab bac bae baj bak bam ban bar bas bau bba bbb bbc bbe bbk bbm bbn bbr bbs bbu bca bcb bcc bce bcj bck bcm bcn bcr bcs bcu be- bea beb bec bee bek bem ben ber bes beu bja bjc bjj bjk bjm bjn bjr bjs bju bka bkb bkc bke bkk bkm bkn bkr bks bma bmb bmc bme bmj bmk bmm bmn bmr bms bmu bna bnb bnc bne bnj bnk bnn bnr bns bnu bra brb bre brj brk brm brn brr brs bru bsa bsb bsc bse bsj bsk bsm bsn bsr bss bsu bua bub buc bue buj buk bum bun bur bus buu c-- c-j caa cab cac cae caj cak cam can car cas cau cba cbb cbc cbe cbj cbk cbm cbn cbr cbs cbu cca ccb ccc cce ccj cck ccm ccn ccr ccs ccu ce- cea ceb cec cee cej cek cem cen cer ces ceu cja cjb cjc cjk cjr cjs cka ckb ckc ckm cks cma cmb cmc cme cmj cmk cmm cmn cmr cms cmu cn- cna cnb cnc cne cnj cnm cnn cnr cns cnu cra crb crc cre crj crk crm crn crr crs cru csa csb csc cse csj csk csm csn csr css csu cua cub cuc cue cuk cum cun cur cus cuu eaa eab eac eae eaj eak eam ean ear eas eau eba ebb ebc ebe ebj ebk ebm ebn ebr ebs ebu ec- eca ecb ecc ece ecj eck ecm ecn ecr ecs ecu eea eeb eec eee eek eem een eer ees eja ejc eju eka ekb ekc eke ekr eks eku em- ema emb emc eme emk emm emn emr ems emu en- ena enb enc ene enk enm enn enr ens enu era erb erc ere erk erm ern err ers eru es- esa esb esc ese esk esm esn esr ess esu eu- eua eub euc eue euj eun eur eus jaa jab jac jae jaj jak jam jan jar jas jau jba jbc jbj jbk jbm jbr jbs jbu jca jcb jcc jce jck jcm jcr jcs jcu jea jeb jec jee jej jek jem jen jer jes jeu jja jjb jjc jjj jjk jjr jjs jju jka jkb jkk jkm jkn jkr jks jku jma jmb jmc jme jmj jmm jmn jmr jms jmu jna jnc jne jnj jnn jnr jns jnu jra jrb jrc jrk jrm jrn jrr jrs jsa jsb jsc jse jsj jsk jsm jsn jsr jss jsu jub jue juk jum jun jur jus ka- kaa kab kac kae kaj kak kam kan kar kas kau kba kbb kbc kbe kbk kbm kbn kbr kbs kbu kca kcb kcc kce kck kcm kcn kcr kcs kcu ke- kea keb kec kee kek kem ken ker kes kjb kjc kje kjr kjs kju kkb kkc kke kkk kkm kkn kkr kks kku kma kmb kmc kme kmj kmk kmm kms kmu kn- kna knc kne knk knm knn knr knu kra krc krk krn krr krs kru ksa ksb ksc kse ksk ksm ksn ksr kss ksu kub kuc kue kuj kuk kum kun kur kus kuu m-r maa mab mac mae maj mak mam man mar mas mau mba mbb mbc mbe mbj mbk mbm mbr mbs mbu mc- mca mcb mcc mce mck mcm mcn mcr mcs mcu mea meb mec mee mej mek mem men mer mes meu mjb mjc mje mjj mjk mjm mjr mjs mka mkb mkc mke mkk mkm mkn mkr mks mku mma mmb mmc mme mmj mmk mmm mmn mmr mms mmu mna mnb mnc mne mnj mnk mnm mnn mnr mns mnu mra mrb mrc mre mrj mrk mrm mrn mrr mrs mru msa msb msc mse msj msk msm msn msr mss msu mua mub muc mue muj muk mum mun mur mus muu naa nab nac nae naj nak nam nan nar nas nau nba nbb nbc nbe nbk nbm nbn nbr nbs nbu nca ncb ncc nce nck ncm ncn ncr ncs ncu ne- nea neb nec nee nej nek nem nen ner nes neu nja njc nje njk njm njn njs nju nka nkc nke nkj nkk nkm nkn nkr nks nku nma nmb nmc nme nmk nmm nmn nmr nms nmu nna nnb nnc nne nnk nnm nnn nns nnu nra nrb nrc nre nrj nrk nrm nrn nrr nrs nru nsa nsb nsc nse nsk nsm nsn nsr nss nsu nua nub nuc nue nuj nuk num nun nur nus nuu ra- raa rab rac rae raj rak ram ran rar ras rau rba rbb rbc rbe rbk rbm rbn rbr rbs rbu rca rcb rcc rce rcj rcm rcn rcr rcs rcu re- rea reb rec ree rek rem ren rer res reu rja rjc rjk rjm rjr rkb rkc rke rkk rkm rks rku rma rmb rmc rme rmm rmn rmr rms rna rnb rnc rnm rnn rnr rns rnu rra rrb rrc rrk rrm rrn rrr rrs rru rsa rsb rsc rse rsj rsk rsm rsn rsr rss rsu rua rub ruc rue ruk rum run rur rus ruu saa sab sac sae saj sak sam san