-er -ic b-u bbb bbc bbe bbi bbo bbr bbu bbx bcb bcc bce bci bco bcr bcu bcx be- beb bec bee bei beo ber beu bex bi- bib bic bie bii bio bir biu bix bob boc boe boi boo bor bou box brb bre bri bro brr bru brx bub buc bue bui buo bur buu bux bxb bxi bxo bxx c-- cbb cbc cbe cbi cbo cbr cbu cbx ccb ccc cce cci cco ccr ccu ccx ce- ceb cec cee cei ceo cer ceu cex ci- cib cic cie cii cio cir ciu cix co- cob coc coe coi coo cor cou cox crb crc cre cri cro crr cru crx cub cuc cue cui cuo cur cuu cxc cxi cxo cxr cxx ebb ebc ebe ebi ebo ebr ebu ebx ec- ecb ecc ece eci eco ecr ecu ecx eeb eec eee eeo eer eex eib eic eie eii eio eir eiu eix eo- eob eoc eoe eoi eoo eor eou erb erc ere eri ero err eru eu- eub euc eue eui eur eux ex- exc exe exi exo exr exu exx ibb ibc ibe ibi ibo ibr ibu ibx icb icc ice ici ico icr icu ie- iec iee iei ier iex iib iic iie iii iio iir iiu iix io- iob ioc ioe ioi ioo ior iou ir- irb irc ire iri iro irr iru irx iu- iub iuc iue iui iur ixc ixe ixi o-i ob- obb obc obe obi obo obr obu obx oc- ocb occ oci oco ocr ocu ocx oeb oec oee oei oeo oer oex oib oic oie oii oio oir oiu oo- oob ooc ooi ooo oor oox or- orb orc ore ori oro orr oru orx ou- ouc oue oui ouo our ox- oxb oxc oxi oxo oxx rbb rbc rbe rbi rbo rbr rbu rbx rcb rcc rce rci rco rcr rcu rcx re- reb rec ree rei reo rer reu rex rib ric rie rii rio rir rix rob roc roe roi roo ror rou rox rrb rrc rri rrr rru rub ruc rue rui ruo rur ruu rux rxr ubb ubc ube ubi ubo ubr ubu ubx ucb ucc uce uci uco ucr ucu ueb uec uee uei uer uib uic uie uii uio uir uiu uob uoc uoe uoo uor uox ur- urb urc ure uri uro urr uru urx uuc uue uur uuu uxb uxc uxo uxr uxu xbc xbe xbr xbx xcb xci xcr xcx xee xer xeu xex xic xie xii xio xiu xix xoc xoi xoo xor xox xrc xrx xue xui xxi xxo xxx

bbbb bbci bbeb bbox bbrc bcbc bccc bcci bcec bcer bcie bcor bcru bcuc bebb bebe bebi bebo beci becu beeb beer beic beir beo- beor berc bere beri bero berr beru beur beux bibb bibe bibi bibo bicc bice bici bico bieb bier bieu bio- bioc bioi biou biox birb bire biri biro birr biru birx bixi bobb bobe bobi bobo bobu boce boco bocu boec boee boeo boer boi- boie boii boiu boob booc booe boor boox bor- bore bori boro borr boru boue bour brcb brce breb brec bree brei breo brer brex bric brie brio brix brob broc broe broo bror brou brox brrr bruc brue brux bubb bube bubi bubo bubu bucc buce buci buco bucu buer bueu buic buie buir buiu buix bur- burb bure buri buro burr buru c-bo cbbc cbcc cbce cbcr cbcu cbec cbee cber cbir cbox cbre cbux ccbc cccb cccc ccci cccu ccee ccic ccii ccir ccix ccob ccoc ccrc ccre ccri ccuc ccxi cebu cec- cece ceci ceco ceeb ceec ceor ceou cer- cerc cere ceri cero ceui ceux cexe cibc cibe cibi cibo cicc cici cico cicr cicu ciee cier ciii ciob cior cirb circ cire ciri ciro cirr ciuc cixi cobb cobe cobi cobo cobu coce coco cocu coex coir coix coob cor- corb corc core cori coro corr coub coue cour coux coxe crbc crbu crcc crce crcr cre- creb crec cree crei creo creu crex crib cric crie criu crob croc croe croo cror crub crue crux cub- cubb cube cubi cucc cuce cuci cuer cui- cuir curb cure curi curo curr cxii cxix cxro cxxi cxxx ebbc ebbo ebbr ebcc eber ebic ebix eboe eboo ebor ebox ebro ebru ebur ecbc ecbe eccb eccc ecce ecci ecco ecib eco- ecou ecrc ecri ecrr ecru eeee eeoc eerc eero eico eiec eiei eier eiou eire eoir eore eori eoux er-x erbb erbe ercc erce ereb erec erei erer eric erie erio eriu erob eroc eroe eroi eroo errc erre erro erub eruc erur eubc eubi euer euoi eur- eurc eure euro exco exec exer exo- exor exrx i-be ibec ibex ibie ibox ibrc ibri ibro icbc iccb iccc icci icco iccr iccu icec icee icer icex 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 ircx iree irer irex iri- iric irie irio irix irob iroc irrc irre irri iucc iuce iuiu ixxi o-eo obbo obec ober obex obie obix oboe oboi obor obox obre obri obro 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 orex ori- oric orie orio orix oro- oroe oror orri orro orub oucc ouer ouie ouii ouir our- oure ouro ouu- oxer oxi- oxic oxie oxo- oxox oxxo rbbb rbbr rcbc rcbo rccb rccc rcic rebb rebe rebo rebu recc rece reci recr recu reeb reii reir reiu reou rere reri rero reru reue reuu reux rexx rib- ribe ribo ribu ricc rice rico rier rieu riex riou rire riri riue rixc rixe rixo rob- robb robe robi robo robu rocc roce roco roer roio roir roiu roob rooi