-er -ic b-u bbb bbc bbe bbg bbi bbl bbr bbu bcb bcc bce bcg bci bcl bcr bcu be- beb bec bee beg bei bel ber beu bgb bgc bge bgg bgi bgl bgr bgu bi- bib bic bie big bii bil bir biu blb blc ble blg bli bll blr blu brb bre brg bri brl brr bru bub buc bue bug bui bul bur buu c-- cbb cbc cbe cbg cbi cbl cbr cbu ccb ccc cce ccg cci ccl ccr ccu ce- ceb cec cee ceg cei cel cer ceu cgb cgc cge cgg cgi cgl cgr cgu ci- cib cic cie cig cii cil cir ciu cl- clb clc cle clg cli cll clr clu crb crc cre crg cri crl crr cru cub cuc cue cug cui cul cur cuu ebb ebc ebe ebg ebi ebl ebr ebu ec- ecb ecc ece ecg eci ecl ecr ecu eeb eec eee eeg eel eer egb egc ege egg egi egl egr egu eib eic eie eig eii eil eir eiu elb elc ele elg eli ell elr elu erb erc ere erg eri erl err eru eu- eub euc eue eug eui eul eur gbc gbe gbg gbi gbl gbr gbu gcb gcc gce gcg gci gcl gcr gcu ge- geb gec gee geg gei gel ger geu ggb ggc ggg ggi ggr ggu gib gic gie gig gii gil gir giu glb glc gle glg gli gll glr glu grb grc gre grg gri grl grr gru gu- gub guc gue gug gui gul gur guu ibb ibc ibe ibg ibi ibl ibr ibu icb icc ice icg ici icl icr icu ie- iec iee ieg iei iel ier igb igc ige igg igi igl igr igu iib iic iie iii iil iir iiu il- ilb ilc ile ilg ili ill ilr ilu ir- irb irc ire irg iri irl irr iru iu- iub iuc iue iug iui iur lbb lbc lbe lbg lbi lbl lbr lbu lcb lcc lce lcg lci lcl lcr lcu leb lec lee leg lei lel ler leu lgb lgc lge lgg lgi lgl lgr lgu lib lic lie lig lii lil lir liu llb llc lle llg lli lll llr llu lrb lrc lrg lri lrr lru lub luc lue lug lui lul lur luu rbb rbc rbe rbg rbi rbl rbr rbu rcb rcc rce rcg rci rcl rcr rcu re- reb rec ree reg rei rel rer reu rgb rgc rge rgg rgi rgr rib ric rie rig rii ril rir rlc rle rlg rli rll rlr rlu rrb rrc rrg rri rrl rrr rru rub ruc rue rug rui rur ruu ubb ubc ube ubg ubi ubl ubr ubu ucb ucc uce ucg uci ucl ucr ucu ueb uec uee ueg uei uel uer ugb ugc uge ugg ugi ugl ugr ugu uib uic uie uig uii uil uir uiu ulb ulc ule ulg uli ull ulr ulu ur- urb urc ure urg uri url urr uru uuc uue uug uur uuu

bbbb bbci bbeb bblb bbrc bbrg bcbc bcbg bccc bcci bccl bcec bcer bcie bcru bcuc bebb bebe bebi beci becu beeb beeg beel beer begg begi begu beic beil beir bele belg beli bell belu berc bere berg beri berr beru beur bibb bibe bibi bibl bicc bice bicg bici bieb biel bier bieu bigb bigc bige bigg bigu bile bili bill bilu birb bire birg biri birl birr biru blcu bleb blee bleg blei bleu blic blir blrc blrg blub blue blur brcb brce breb brec bree breg brei brel brer bric brie brig bril brrr bruc brue brug bubb bube bubi bubu bucc buce buci bucu buel buer bueu buge bugg bugi buic buie buir buiu bulb bule bulg buli bull bulu bur- burb bure burg buri burl burr buru cbbc cbcc cbce cbcl cbcr cbcu cbec cbee cber cbgb cbir cblb cblc cbre cbrl ccbc cccb cccc ccci cccl cccu ccee ccel ccgc ccic ccii ccil ccir cclc cclg ccli ccrc ccre ccrg ccri ccrl ccuc cebu cec- cece ceci ceeb ceec ceel cege ceil cel- celc cele celi cell cer- cerc cere ceri cerl ceui cgcc cgcg cgel cger cibc cibe cibi cicc cici cicr cicu ciee ciel cier cigi cigu ciii cili cill cirb circ cire ciri cirl cirr ciuc clec clee cleg clei cler cleu clib clic clig clii clir clri club clue 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- cuil cuir culb culc cule cull curb cure curi curl curr e-cl ebbc ebbr ebcc ebel eber ebic ebli ebru ebul ebur ecbc ecbe eccb eccc ecce ecci eccl ecib ecig ecil ecrc ecri ecrl ecrr ecru eeee eele eerc eerg egbe egbu egcc egcg egcr egec egee egel eger eggb egge eggi egil egir eglc egle egli eglu egre egri eiec eiei eier eige eigg eile eire el-b elbe elbi elbu elcb elce elec elee eler elgg elic elie elil elle elli ellu elue elui elul erbb erbe ercc erce ereb erec erei erel erer erg- ergg ergi eric erie eril eriu erle erli erll errc erre erub eruc erur eubc eubi euer euge eule eur- eurc eure gc-c gcbc gccc gcic gcii gclc gcrg gebe gebi gece geel geer gege gegg gegl geic geie geig geil geir gelb gele gelg geli gell gelu gerb gere geri gerl geru geue geul ggcl gggg gibb gibe gicr giel gier gige gigg gigi gile gilg gili gill gire girg giri girl girr giru giue giur glbc glcc glce gleb glee gleg glei gleu glge gli- glib glic glie glrb glub glue glug glui glur grbr grcc grce greb grec gree greg greu grib gric grie grig gril grrl grrr grub grue grug grui grur gubb gubi gubu guci guel guer gugb guge gugg gugi gugu guib guil gulb gule guli gull gulu gurb gure gurg