-er b-u bbb bbc bbe bbf bbo bbr bbt bbu bcb bcc bce bcf bco bcr bct bcu be- beb bec bee bef beo ber bet beu bfb bfc bfe bff bfo bfr bft bfu bob boc boe bof boo bor bot bou brb bre brf bro brr brt bru btb btc bte btf bto btr btt btu bub buc bue buf buo bur but buu c-- cbb cbc cbe cbf cbo cbr cbt cbu ccb ccc cce ccf cco ccr cct ccu ce- ceb cec cee cef ceo cer cet ceu cfb cfc cfe cff cfo cfr cft cfu co- cob coc coe cof coo cor cot cou crb crc cre crf cro crr crt cru ctb ctc cte ctf cto ctr ctt ctu cub cuc cue cuf cuo cur cut cuu ebb ebc ebe ebf ebo ebr ebt ebu ec- ecb ecc ece ecf eco ecr ect ecu eeb eec eee eef eeo eer eet ef- efb efc efe eff efo efr eft eo- eob eoc eoe eof eoo eor eot eou erb erc ere erf ero err ert eru etb etc ete etf eto etr ett etu eu- eub euc eue euf eur eut fbb fbc fbe fbf fbo fbr fbt fbu fcb fcc fce fcf fco fcr fct fcu feb fec fee fef feo fer fet feu ffc ffe fff ffo ffr fft ffu fob foc foe fof foo for fot fou frb frc fre frf fro frr frt fru ftb ftc fte ftf fto ftr ftt ftu fub fue fuf fuo fur fut fuu ob- obb obc obe obf obo obr obt obu oc- ocb occ ocf oco ocr oct ocu oeb oec oee oef oeo oer oet of- ofb ofc ofe off ofo ofr oft ofu oo- oob ooc oof ooo oor oot or- orb orc ore orf oro orr ort oru ot- otb otc ote otf oto otr ott otu ou- ouc oue ouf ouo our out rbb rbc rbe rbf rbo rbr rbt rbu rcb rcc rce rcf rco rcr rct rcu re- reb rec ree ref reo rer ret reu rfb rfc rfe rff rfo rfr rft rfu rob roc roe rof roo ror rot rou rrb rrc rrf rrr rrt rru rtb rtc rte rtf rto rtr rtt rtu rub ruc rue ruf ruo rur rut ruu tbb tbc tbe tbf tbo tbr tbt tbu tcb tcc tce tcf tco tcr tct tcu te- teb tec tee tef teo ter tet teu tfb tfc tfe tff tfo tfr tft tfu to- tob toc toe tof too tor tot tou trb trc tre trf tro trr trt tru ttb ttc tte ttf tto ttr ttt ttu tub tuc tue tuf tuo tur tut tuu ubb ubc ube ubf ubo ubr ubt ubu ucb ucc uce ucf uco ucr uct ucu ueb uec uee uef uer uet ufc ufe uff ufo ufr uft ufu uob uoc uoe uoo uor uot ur- urb urc ure urf uro urr urt uru utb utc ute utf uto utr utt utu uuc uue uur uut uuu

bbbb bbeb bbet bbfc bbrc bcbc bccc bcec bcer bcet bcfc bcof bcor bcru bctc bcuc bebb bebe bebo becu beeb beef beer beet befe beff befo beft beo- beof beor beot berc bere bero berr bert beru betc bete beto bett betu beur bftt bobb bobe bobo bobu boce boco bocu boec boee boef boeo boer boet bofe boff bofu boob booc booe boof boor boot bor- bore borf boro borr bort boru botb bote boto bott boue bouf bour bout brcb brce breb brec bree bref breo brer bret brfc brfu brob broc broe broo bror brot brou brrr brtc bruc brue brut btcc btec btfc btob btor btrc btrt bttb bubb bube bubo bubu bucc buce buco bucu buer bueu bufc bufe buff bufo bufr bur- burb bure buro burr burt buru but- bute buto butt c-bo cbbc cbcc cbce cbcr cbct cbcu cbec cbee cbef cber cbet cbfb cbfc cbot cbre cbrt cbtc cbtf ccbc cccb cccc cccf cccu ccee ccfc ccff ccob ccoc ccrc ccre ccrf ccrt cctb cctc cctt ccuc ccut cebu cec- cece ceco cect ceeb ceec cef- cefc ceor ceou cer- cerc cere cerf cero cert cet- cete ceto cfbc cfbr cfbt cfcb cfcf cfco cffb cffr cfor cfrb cfre cfrt cftc cfte cftr cobb cobe cobo cobu coce coco coct cocu cofc cofe coff coft coob coof coot cor- corb corc core corf coro corr cort cotb cotc cote coto cott cotu coub coue cour cout crbc crbu crcc crce crcr cre- creb crec cree creo cret creu crfc crob croc croe croo cror crot crrt crtc crtf crub crue crut ctcf ctec ctfc ctfo ctor ctot ctrc cub- cubb cube cucc cuce cuer cufc cuff cufo curb cure curf curo curr curt cut- cutc cute cuto cutt ebbc ebbo ebbr ebcc eber ebfc eboe eboo ebor ebro ebru ebur ecbc ecbe eccb eccc ecce ecco ecct ecef ecfc ecfr eco- ecot ecou ecrc ecrf ecrr ecru ect- ectc ectf ecto eeee eefe eeoc eerc eero eetc eete eetu efbr efco efeo efet efor eft- eftu eore eotc eoto erbb erbe ercc erce ereb erec erer eret erfc erft erob eroc eroe eroo errc erre erro ertu erub eruc erur etbc etbr etcc etco etec etee eter etfb etfc etfe etoe etre etro ette etto ettu eubc euer eufc eur- eurc eure euro eurt fccf fcot fcto febo fece fect feeb feer feet fefc fefe feff fefo feof ferb ferc fere fero ferr fert feru fete fetr fett fetu ffcc ffee ffff ffrr fftf fobt foce foco foer fofo foof foot for- forb fore foro forr fort fote foto fott four fout frbc frcc free freo fret frfc frob froe frot frou frub frue ft-c fter ftfc ftub ftuc fubb fubu fuc- fuct fuet fufc fuff fufu fuor fur- fure furo furr furt fute futo futu o-eo obbo obec ober obet oboe obor obot obre obro ocbc occc occt oce ocee