-er b-u bbb bbc bbe bbh bbk bbm bbr bbu bcb bcc bce bch bck bcm bcr bcu be- beb bec bee beh bek bem ber beu bhb bhc bhe bhh bhk bhm bhr bhu bkb bkc bke bkk bkm bkr bmb bmc bme bmh bmk bmm bmr bmu brb bre brh brk brm brr bru bub buc bue buh buk bum bur buu c-- cbb cbc cbe cbh cbk cbm cbr cbu ccb ccc cce cch cck ccm ccr ccu ce- ceb cec cee ceh cek cem cer ceu ch- chb chc che chh chk chm chr chu ckb ckc ckh ckm cmb cmc cme cmh cmk cmm cmr cmu crb crc cre crh crk crm crr cru cub cuc cue cuh cuk cum cur cuu ebb ebc ebe ebh ebk ebm ebr ebu ec- ecb ecc ece ech eck ecm ecr ecu eeb eec eee eek eem eer ehb ehc ehe ehh ehm ehr ehu ekb ekc eke ekh ekr eku em- emb emc eme emh emk emm emr emu erb erc ere erh erk erm err eru eu- eub euc eue eur hbb hbc hbe hbh hbk hbm hbr hbu hcb hcc hce hch hck hcm hcr he- heb hec hee heh hek hem her heu hhb hhc hhe hhh hhk hhm hhr hhu hkb hkh hkk hkm hkr hku hmb hmc hme hmh hmk hmm hmr hmu hr- hrb hrc hre hrh hrk hrm hrr hru hub huc hue huh huk hum hur huu kbb kbc kbe kbh kbk kbm kbr kbu kcb kcc kce kch kck kcm kcr kcu ke- keb kec kee keh kek kem ker khe khh khk khm khr khu kkb kkc kke kkh kkk kkm kkr kku kmb kmc kme kmh kmk kmm kmu krc krk krr kru kub kuc kue kuh kuk kum kur kuu m-r mbb mbc mbe mbh mbk mbm mbr mbu mc- mcb mcc mce mch mck mcm mcr mcu meb mec mee meh mek mem mer meu mhc mhh mhk mhm mhr mhu mkb mkc mke mkh mkk mkm mkr mku mmb mmc mme mmh mmk mmm mmr mmu mrb mrc mre mrh mrk mrm mrr mru mub muc mue muh muk mum mur muu rbb rbc rbe rbh rbk rbm rbr rbu rcb rcc rce rch rcm rcr rcu re- reb rec ree reh rek rem rer reu rh- rhb rhc rhe rhh rhm rhr rhu rkb rkc rke rkk rkm rku rmb rmc rme rmh rmm rmr rrb rrc rrh rrk rrm rrr rru rub ruc rue ruh ruk rum rur ruu ubb ubc ube ubh ubk ubr ubu ucb ucc uce uch uck ucm ucr ucu ueb uec uee ueh uem uer uhb uhc uhe uhh uhm uhr uhu ukb ukc uke ukk ukr uku um- umb umc ume umh umm umr umu ur- urb urc ure urk urm urr uru uuc uue uum uur uuu

bbbb bbch bbcm bbeb bbrc bcbc bccc bccm bcec bcer bche bcru bcuc bebb bebe bech beck becu beeb beek beem beer behm behr beke beme bemu berc bere berk berm berr beru beuk beur bhcc bher bhur bhuu bmce brcb brce breb brec bree brek brem brer brkb brmc brrm brrr bruc brue bruh brum bubb bube bubu bucc buce buch buck bucu buem buer bueu buhe buhr buke bukh bukk buku bum- bumb bur- burb bure burh burk burm burr buru cbbc cbcc cbce cbcm cbcr cbcu cbec cbee cber cbkm cbkr cbme cbre cbrh cbrm ccbc cccb cccc cccm cccu ccee cche cchr cckm ccmb ccmc ccmm ccrc ccre ccuc cebu cec- cece cecm ceeb ceec ceem ceke cemb ceme cemm cemr cemu cer- cerc cere chce chch chcm cheb chec chee cheh chek chem cher cheu chkb chmb chmc chrb chrc chrr chub chuk chum chur ckbc ckbe ckch ckck ckcm ckem cker ckrc ckrm cmbc cmcc cmec cmhc cmmb cmmc cmrr crbc crbu crcc crce crcr cre- creb crec cree creh crem creu crkc crmb crub crue cruk crum cub- cubb cube cucc cuce cuck cucm cuek cuer cuk- cuke cum- cume curb cure curr ebbc ebbr ebcc eber ebru ebur ecbc ecbe eccb eccc ecce eccm ecem eche ecrc ecrm ecrr ecru eeee eeke eerc ehcc eheh eher eheu ehre ekch ekeb ekek eker ekur embe embr emcc emek emer emeu emhc emme emmu emre erbb erbe ercc erce erch ereb erec erem erer erhc erhu erke ermc erme errc erre erub eruc eruh erum erur eubc euch euer eumc eur- eurc eure hcbc hccb hccc hcch hcmc hcmm hebb hebe hebr hech heck heeb heek heem heer hehe heke heku hem- heme hemu herb herc here herk herm herr heru heue heuk heur hhhh hkbu hkcc hmhb hmmm hree hrrc hubb hube huch huck hucu huer huhu huke hukm hume humh humm hure hurk hurr huru huub kbbb kbbc kbbe kbbk kbbm kbbr kbbu kbcb kbce kbch kbck kbcr kbcu kbeb kbec kbee kbeh kbek kber kbhb kbhc kbhe kbhh kbhm kbhr kbkb kbkk kbkr kbmb kbmc kbme kbmr kbrb kbrc kbre kbrh kbrk kbru kbub kbuc kbue kbuk kbur kbuu kcbc kcbk kcbr kcbu kccb kccc kcck kccr kccu kceb kcec kcee kceu kche kchh kchk kchr kchu kckc kckk kckm kckr kcmb kcmc kcme kcmh kcmk kcmm kcmr kcrc kcrh kcrr kcru kcub kcue kcuh kcuk kebb kebc kebe kebr kebu kech keck kecr keeh keek keem keer kehk kehr kekb kekc keke keku kemb kemc keme kemm kemr kemu ker- kerb kerc kere kerk kerm kerr keru keur khbc khbm khbr khcb khcc khch khck khcm kheb khec khem kher khhk khhm khke khkk khkm khkr khmb khmc khme khmr khmu khrk khrr khub khuk khum khur kkbb kkbe kkbr kkcb kkch kkck kkcm kkcr kkhb kkhh kkhk kkhr kkkk kkmc kkmk kkmr kkrb kkrc kkre kkrh kkrk kkrr kkuu kmbc kmbh kmbr kmcb kmcc kmce kmch kmcm kmcr kmcu kmem kmer kmhb kmhk kmhm kmhr kmke kmkk kmme kmmk kmmm kmmr kmrb kmrc kmrr kmuc kmue