-er -ic bbb bbc bbe bbi bbo bbr bbt bcb bcc bce bci bco bcr bct be- beb bec bee bei beo ber bet bi- bib bic bie bii bio bir bit bob boc boe boi boo bor bot brb bre bri bro brr brt btb btc bte bti bto btr btt c-- cbb cbc cbe cbi cbo cbr cbt ccb ccc cce cci cco ccr cct ce- ceb cec cee cei ceo cer cet ci- cib cic cie cii cio cir cit co- cob coc coe coi coo cor cot crb crc cre cri cro crr crt ctb ctc cte cti cto ctr ctt ebb ebc ebe ebi ebo ebr ebt ec- ecb ecc ece eci eco ecr ect eeb eec eee eeo eer eet eib eic eie eii eio eir eit eo- eob eoc eoe eoi eoo eor eot erb erc ere eri ero err ert etb etc ete eti eto etr ett ibb ibc ibe ibi ibo ibr ibt icb icc ice ici ico icr ict ie- iec iee iei ier iet iib iic iie iii iio iir iit io- iob ioc ioe ioi ioo ior iot ir- irb irc ire iri iro irr irt itb itc ite iti ito itt o-i ob- obb obc obe obi obo obr obt oc- ocb occ oci oco ocr oct oeb oec oee oei oeo oer oet oib oic oie oii oio oir oit oo- oob ooc ooi ooo oor oot or- orb orc ore ori oro orr ort ot- otb otc ote oti oto otr ott rbb rbc rbe rbi rbo rbr rbt rcb rcc rce rci rco rcr rct re- reb rec ree rei reo rer ret rib ric rie rii rio rir rit rob roc roe roi roo ror rot rrb rrc rri rrr rrt rtb rtc rte rti rto rtr rtt tbb tbc tbe tbi tbo tbr tbt tcb tcc tce tci tco tcr tct te- teb tec tee tei teo ter tet tib tic tie tii tio tir tit to- tob toc toe toi too tor tot trb trc tre tri tro trr trt ttb ttc tte tti tto ttr ttt

bbbb bbci bbeb bbet bbrc bcbc bccc bcci bcec bcer bcet bcie bcit bcor bctc bebb bebe bebi bebo beci beeb beer beet beic beir beit beo- beor beot berc bere beri bero berr bert betc bete beti beto bett bibb bibe bibi bibo bicc bice bici bico bieb bier biet bio- bioc bioi biot birb bire biri biro birr birt bitc bite bito bitt bobb bobe bobi bobo boce boco boec boee boeo boer boet boi- boie boii boit boob booc booe boor boot bor- bore bori boro borr bort botb bote boti boto bott brcb brce breb brec bree brei breo brer bret bric brie brio brit brob broc broe broo bror brot brrr brtc btcc btec btie btob btor btrc btrt bttb c-bo cbbc cbcc cbce cbcr cbct cbec cbee cber cbet cbir cbit cbot cbre cbrt cbtc ccbc cccb cccc ccci ccee ccic ccii ccir ccob ccoc ccrc ccre ccri ccrt cctb cctc cctt cec- cece ceci ceco cect ceeb ceec ceor cer- cerc cere ceri cero cert cet- cete ceti ceto cibc cibe cibi cibo cicc cici cico cicr cict ciee cier ciii ciit ciob cior cirb circ cire ciri ciro cirr cirt citb cite citi cito citt cobb cobe cobi cobo coce coco coct coir coit coob coot cor- corb corc core cori coro corr cort cotb cotc cote coti coto cott crbc crcc crce crcr cre- creb crec cree crei creo cret crib cric crie crit crob croc croe croo cror crot crrt crtc ctbi ctec ctic ctor ctot ctrc ebbc ebbo ebbr ebcc eber ebic ebit eboe eboo ebor ebro ecbc ecbe eccb eccc ecce ecci ecco ecct ecib ecit eco- ecot ecrc ecri ecrr ect- ectc ecto eeee eeoc eerc eero eetc eete eico eiec eiei eier eire eitb eitc eiti eito eitr eoir eore eori eotc eoto erbb erbe ercc erce ereb erec erei erer eret eric erie erio erit erob eroc eroe eroi eroo errc erre erro etbc etbr etcc etco etec etee eter etic etio etoe etre etro ette etti etto i-be ibec ibet ibie ibot ibrc ibri ibro ibtb ibtc icbc iccb iccc icci icco iccr icct icec icee icer icet icoc icor icrc icre icrr icrt iecc ieet ieie ieio iere ieri iett iiie iiii iiio iiit iioi iioo iirc iitr iitt iobi ioci ioee ioii ioio ioit iooi iooo iore iori iote ioto irbe ircc iree irer iri- iric irie irio irob iroc irrc irre irri irte irti itbe itec iter itet itic itie itoi itoo itor itri itto o-eo obbo obec ober obet obie obit oboe oboi obor obot obre obri obro ocbc occc occi occt oce ocee ocet ocre ocro ocrr oct- octe octi octo oec- oecc oeec oere oeti oici oier oiii oire oirt oitc oiti oobe oobi oocr ooer oooo oore oort ootb orbb orbe orbi orbo orce orci orco ore- oreb orec oreo orer ori- oric orie orio orit oro- oroe oror orot orri orro ortc orte orto otee oter otic otit oto- otoe otoo otor otre otro otte otti otto rbbb rbbr rcbc rcbo rccb rccc rcet rcic rctc rcti rebb rebe rebo recc rece reci recr rect reeb reet reii reir reit reot rere reri rero rert rete reti reto retr rett rib- ribe ribo ricc rice rico rict rier riet riot rire riri rite riti rito ritt rob- robb robe robi robo robt rocc roce roco roer roet roio roir roit roob rooi roor root rorc rore rori roro rort rotc rote roti roto rotr rott rrrr rtcc rtce rtee rtei tbcb tbcc tbce tbit tbrb tccc tctc tebo teco tecr tect teec teer teet teic teie teir teor ter- terc tere teri tero terr tete teti teto tetr tett tibi ticc tice tico tie- tiee tiei tieo tier tiet tiit tirb tire tiri tiro tirr titc tite titi tito titt