-er -ic b-u bbb bbc bbe bbg bbi bbr bbu bcb bcc bce bcg bci bcr bcu bcv be- beb bec bee beg bei ber beu bev bgb bgc bge bgg bgi bgr bgu bgv bi- bib bic bie big bii bir biu biv brb bre brg bri brr bru brv bub buc bue bug bui bur buu bvb bvc bve bvg bvi bvr bvu bvv c-- cbb cbc cbe cbg cbi cbr cbu cbv ccb ccc cce ccg cci ccr ccu ccv ce- ceb cec cee ceg cei cer ceu cev cgb cgc cge cgg cgi cgr cgu cgv ci- cib cic cie cig cii cir ciu civ crb crc cre crg cri crr cru crv cub cuc cue cug cui cur cuu cuv cvb cvc cve cvg cvi cvr cvu cvv ebb ebc ebe ebg ebi ebr ebu ebv ec- ecb ecc ece ecg eci ecr ecu ecv eeb eec eee eeg eer eev egb egc ege egg egi egr egu eib eic eie eig eii eir eiu eiv erb erc ere erg eri err eru erv eu- eub euc eue eug eui eur euv evb evc eve evg evi evr evv gbc gbe gbg gbi gbr gbu gbv gcb gcc gce gcg gci gcr gcu ge- geb gec gee geg gei ger geu gev ggb ggc ggg ggi ggr ggu ggv gib gic gie gig gii gir giu giv grb grc gre grg gri grr gru grv gu- gub guc gue gug gui gur guu guv gvb gvc gve gvg gvi gvr gvu i-v ibb ibc ibe ibg ibi ibr ibu ibv icb icc ice icg ici icr icu icv ie- iec iee ieg iei ier iev igb igc ige igg igi igr igu iib iic iie iii iir iiu ir- irb irc ire irg iri irr iru irv iu- iub iuc iue iug iui iur ivb ivc ive ivg ivi ivr ivu ivv rbb rbc rbe rbg rbi rbr rbu rcb rcc rce rcg rci rcr rcu rcv re- reb rec ree reg rei rer reu rev rgb rgc rge rgg rgi rgr rgv rib ric rie rig rii rir riv rrb rrc rrg rri rrr rru rub ruc rue rug rui rur ruu ruv rvb rvc rve rvg rvi rvr rvu rvv ubb ubc ube ubg ubi ubr ubu ubv ucb ucc uce ucg uci ucr ucu ucv ueb uec uee ueg uei uer ugb ugc uge ugg ugi ugr ugu uib uic uie uig uii uir uiu ur- urb urc ure urg uri urr uru uuc uue uug uur uuu uvb uvc uve uvu uvv v-e vbc vbg vbi vbr vbv vcc vce vci vcr vcu veb vec vee veg vei ver veu vgc vgg vgr vgu vi- vib vic vie vig vii vir viu viv vrb vrc vre vrg vri vrr vru vue vug vur vuv vvb vvc vvg vvi vvr vvv

bbbb bbci bbeb bbrc bbrg bcbc bcbg bccc bcci bcec bcer bcie bcru bcuc bebb bebe bebi beci becu beeb beeg beer begg begi begu beic beir berc bere berg beri berr beru beur bibb bibe bibi bicc bice bicg bici bieb bier bieu bigb bigc bige bigg bigu birb bire birg biri birr biru bive bivi brcb brce breb brec bree breg brei brer brev bric brie brig brrr bruc brue brug bruv brvi bubb bube bubi bubu bucc buce buci bucu buer bueu buge bugg bugi buic buie buir buiu bur- burb bure burg buri burr buru buve cbbc cbcc cbce cbcr cbcu cbec cbee cber cbgb cbir cbre cbvb cbve cbvg cbvr ccbc cccb cccc ccci cccu cccv ccee ccgc ccic ccii ccir cciv ccrc ccre ccrg ccri ccuc ccvi cebu cec- cece ceci ceeb ceec cege cer- cerc cere ceri ceui cgcc cgcg cger cibc cibe cibi cicc cici cicr cicu ciee cier cigi cigu ciii cirb circ cire ciri cirr ciuc civc cive crbc crbu crcc crce crcr cre- creb crec cree creg crei creu crib cric crie crig criu crub crue crug cub- cubb cube cubi cucc cuce cuci cuer cui- cuir curb cure curi curr cuve cvcc cver cvii cvrg cvrr ebbc ebbr ebcc eber ebic ebru ebur ecbc ecbe eccb eccc ecce ecci ecib ecig ecrc ecri ecrr ecru ecrv eeee eerc eerg egbe egbu egcc egcg egcr egec egee eger eggb egge eggi egir egre egri eiec eiei eier eige eigg eire erbb erbe ercc erce ereb erec erei erer erev erg- ergg ergi eric erie eriu errc erre erub eruc erur eruv erve ervi eubc eubi euer euge eur- eurc eure ever evie evir evre gc-c gcbc gccc gcic gcii gciv gcrg gebe gebi gece geer gege gegg geic geie geig geir gerb gere geri geru geue geve gggg gibb gibe gicr gier gige gigg gigi gire girg giri girr giru giue giur give grbr grcc grce greb grec gree greg greu grev grib gric grie grig grrr grub grue grug grui grur grve gubb gubi gubu guci guer gugb guge gugg gugi gugu guib gurb gure gurg guri gurr guru gvvv i-be ibec ibeg ibge ibie ibrc ibri icbc iccb iccc icci iccr iccu icec icee icer icgc icrc icre icrr icru icub icue iecc ieie iere ieri igbc igcc iger igri igue iiie iiii iirc iiuc irbe ircc ircg ircu iree irer iri- iric irie irig irrc irre irri iucc iuce iucv iuge iuiu ivbv ivec iver ivic ivie ivig ivre ivue rbbb rbbr rcbc rccb rccc rcgc rcic rcrg rcuv rcvr rebb rebe rebu recc rece reci recr recu reeb reev rege regi regr regu reii reir reiu rere rerg reri reru reue reuu reve revi rgbe rgbi rib- ribe ribu ricc rice rier rieu rige rigg rigi rigu rire riri riue rive rrrr rubb rube rubi rubu ruce ruci ruer ruge rugg rugi rurc rure ruri ruru ruve ruvi ruvu rv-c rver u-ie ubbe ubbi uber ubic ubii ubir ucbc ucci ucrc ueir ugcc ugcg ugri ugur uguu uige uirr urbe urbi urci ure- urge urgi urgu