-er b-u bbb bbc bbe bbr bbu bcb bcc bce bcr bcu be- beb bec bee ber beu brb bre brr bru bub buc bue bur buu c-- cbb cbc cbe cbr cbu ccb ccc cce ccr ccu ce- ceb cec cee cer ceu crb crc cre crr cru cub cuc cue cur cuu ebb ebc ebe ebr ebu ec- ecb ecc ece ecr ecu eeb eec eee eer erb erc ere err eru eu- eub euc eue eur rbb rbc rbe rbr rbu rcb rcc rce rcr rcu re- reb rec ree rer reu rrb rrc rrr rru rub ruc rue rur ruu ubb ubc ube ubr ubu ucb ucc uce ucr ucu ueb uec uee uer ur- urb urc ure urr uru uuc uue uur uuu

bbbb bbeb bbrc bcbc bccc bcec bcer bcru bcuc bebb bebe becu beeb beer berc bere berr beru beur brcb brce breb brec bree brer brrr bruc brue bubb bube bubu bucc buce bucu buer bueu bur- burb bure burr buru cbbc cbcc cbce cbcr cbcu cbec cbee cber cbre ccbc cccb cccc cccu ccee ccrc ccre ccuc cebu cec- cece ceeb ceec cer- cerc cere crbc crbu crcc crce crcr cre- creb crec cree creu crub crue cub- cubb cube cucc cuce cuer curb cure curr ebbc ebbr ebcc eber ebru ebur ecbc ecbe eccb eccc ecce ecrc ecrr ecru eeee eerc erbb erbe ercc erce ereb erec erer errc erre erub eruc erur eubc euer eur- eurc eure rbbb rbbr rcbc rccb rccc rebb rebe rebu recc rece recr recu reeb rere reru reue reuu rrrr rubb rube rubu ruce ruer rurc rure ruru ubbe uber ucbc ucrc urbe ure- urre urur uuuu

bbbee be-er beber becue beebe berbe bercu berec berre berru beuer beure brebu brece breer brere breu- brrrr bruce bruer bubbe buber bucur burcu burru buruc ccccc cebec ceber ceere cerc- cerce cerec cerer cerre crebe crece creer creu- creue cruce crure cubbe cubeb cuber cubub curce curer curre ebber ebure eeeee erbbe erber erere eucre eurre rebbe rebec reber recce recue recur reece reere rere- reree reuer rubee ruber rucer ruere rurec u-cee uber- urubu uruce urucu uuuuu

bbbbbb becure beebee berbee berber berere berrer berube beurre breere breuer brubru bruree bubber bububu burbur burcer burree burrer c-cube ceecee ceruce cubber cubube cucube cucurb curber currer eburru eebree erbree rebbec rebeuc recrue recuer recurb recure reuere rubbee rubber

bbbbbbb bebeeru berbere burbure cerbere cerebr- currere recurer

bbbbbbbb berebere buruburu cucurucu curucucu recurrer

beebeebee

berberburr

bbbbbbbbbbbbbbb ccccccccccccccc