-er -ic b-u bbb bbc bbe bbi bbo bbr bbu bcb bcc bce bci bco bcr bcu bcv be- beb bec bee bei beo ber beu bev bi- bib bic bie bii bio bir biu biv bob boc boe boi boo bor bou bov brb bre bri bro brr bru brv bub buc bue bui buo bur buu bvb bvc bve bvi bvo bvr bvu bvv c-- cbb cbc cbe cbi cbo cbr cbu cbv ccb ccc cce cci cco ccr ccu ccv ce- ceb cec cee cei ceo cer ceu cev ci- cib cic cie cii cio cir ciu civ co- cob coc coe coi coo cor cou cov crb crc cre cri cro crr cru crv cub cuc cue cui cuo cur cuu cuv cvb cvc cve cvi cvo cvr cvu cvv ebb ebc ebe ebi ebo ebr ebu ebv ec- ecb ecc ece eci eco ecr ecu ecv eeb eec eee eeo eer eev eib eic eie eii eio eir eiu eiv eo- eob eoc eoe eoi eoo eor eou erb erc ere eri ero err eru erv eu- eub euc eue eui eur euv evb evc eve evi evo evr evv i-v ibb ibc ibe ibi ibo ibr ibu ibv icb icc ice ici ico icr icu icv ie- iec iee iei ier iev iib iic iie iii iio iir iiu io- iob ioc ioe ioi ioo ior iou iov ir- irb irc ire iri iro irr iru irv iu- iub iuc iue iui iur ivb ivc ive ivi ivo ivr ivu ivv o-i ob- obb obc obe obi obo obr obu obv oc- ocb occ oci oco ocr ocu ocv oeb oec oee oei oeo oer oib oic oie oii oio oir oiu oiv oo- oob ooc ooi ooo oor oov or- orb orc ore ori oro orr oru orv ou- ouc oue oui ouo our ov- ovb ovc ove ovi ovo ovv rbb rbc rbe rbi rbo rbr rbu rcb rcc rce rci rco rcr rcu rcv re- reb rec ree rei reo rer reu rev rib ric rie rii rio rir riv rob roc roe roi roo ror rou rov rrb rrc rri rrr rru rub ruc rue rui ruo rur ruu ruv rvb rvc rve rvi rvo rvr rvu rvv ubb ubc ube ubi ubo ubr ubu ubv ucb ucc uce uci uco ucr ucu ucv ueb uec uee uei uer uib uic uie uii uio uir uiu uob uoc uoe uoo uor ur- urb urc ure uri uro urr uru uuc uue uur uuu uvb uvc uve uvo uvu uvv v-e vbc vbi vbo vbr vbv vcc vce vci vco vcr vcu veb vec vee vei veo ver veu vi- vib vic vie vii vio vir viu viv vob voc voe voi voo vor vou vov vrb vrc vre vri vrr vru vue vur vuv vvb vvc vvi vvo vvr vvv

bbbb bbci bbeb bbrc bcbc bccc bcci bcec bcer bcie bcor bcru bcuc bcvo bebb bebe bebi bebo beci becu beeb beer beic beir beo- beor berc bere beri bero berr beru beur bevo bibb bibe bibi bibo bicc bice bici bico bieb bier bieu bio- bioc bioi biou birb bire biri biro birr biru bive bivi bobb bobe bobi bobo bobu boce boco bocu boec boee boeo boer boi- boie boii boiu boob booc booe boor bor- bore bori boro borr boru boue bour bove bovi bovo brcb brce breb brec bree brei breo brer brev bric brie brio brob broc broe broo bror brou brrr bruc brue bruv brvi bubb bube bubi bubo bubu bucc buce buci buco bucu buer bueu buic buie buir buiu bur- burb bure buri buro burr buru buve c-bo cbbc cbcc cbce cbcr cbcu cbec cbee cber cbir cbre cbvb cbve cbvr ccbc cccb cccc ccci cccu cccv ccee ccic ccii ccir cciv ccob ccoc ccrc ccre ccri ccuc ccvi ccvo cebu cec- cece ceci ceco ceeb ceec ceor ceou cer- cerc cere ceri cero ceui cevo cibc cibe cibi cibo cicc cici cico cicr cicu ciee cier ciii ciob cior cirb circ cire ciri ciro cirr ciuc civc cive civo cobb cobe cobi cobo cobu coce coco cocu coir coob cor- corb corc core cori coro corr coub coue cour cove covo crbc crbu crcc crce crcr cre- creb crec cree crei creo creu crib cric crie criu crob croc croe croo cror crub crue cub- cubb cube cubi cucc cuce cuci cuer cui- cuir curb cure curi curo curr cuve cvcc cver cvii cvrr ebbc ebbo ebbr ebcc eber ebic eboe eboo ebor ebro ebru ebur ecbc ecbe eccb eccc ecce ecci ecco ecib eco- ecou ecrc ecri ecrr ecru ecrv eeee eeoc eerc eero eico eiec eiei eier eiou eire eoir eore eori erbb erbe ercc erce ereb erec erei erer erev eric erie erio eriu erob eroc eroe eroi eroo errc erre erro erub eruc erur eruv erve ervi eubc eubi euer euoi eur- eurc eure euro ever evie evir evoe evoo evre i-be ibec ibie ibrc ibri ibro icbc iccb iccc icci icco iccr iccu icec icee icer icoc icor icrc icre icrr icru icub icue iecc ieie ieio iere ieri iiie iiii iiio iioi iioo iirc iiuc iobi ioci ioee ioii ioio iooi iooo iore iori irbe ircc ircu iree irer iri- iric irie irio irob iroc irov irrc irre irri iucc iuce iucv iuiu ivbv ivec iver ivic ivie ivor ivre ivue o-eo obbo obec ober obie oboe oboi obor obre obri obro obvi ocbc occc occi oce ocee ocre ocro ocrr ocur oec- oecc oeec oere oici oier oiii oire oobe oobi oocr ooer oooo oore orbb orbe orbi orbo orbu orce orci orco ore- oreb orec oreo orer ori- oric orie orio oro- oroe oror orri orro orub orve orvr oucc ouer ouie ouii ouir our- oure ouro ouu- ovee over ovi- ovie ovo- ovoo ovre rbbb rbbr rcbc rcbo rccb rccc rcic rcuv rcvr rebb rebe rebo rebu recc rece reci recr recu