-er bbb bbc bbe bbk bbo bbr bbt bcb bcc bce bcj bck bco bcr bct be- beb bec bee bek beo ber bet bjc bjj bjk bjr bjt bkb bkc bke bkk bko bkr bkt bob boc boe boj bok boo bor bot brb bre brj brk bro brr brt btb btc bte btk bto btr btt c-- c-j cbb cbc cbe cbj cbk cbo cbr cbt ccb ccc cce ccj cck cco ccr cct ce- ceb cec cee cej cek ceo cer cet cjb cjc cjk cjr ckb ckc cko ckt co- cob coc coe coj cok coo cor cot crb crc cre crj crk cro crr crt ctb ctc cte ctk cto ctr ctt ebb ebc ebe ebj ebk ebo ebr ebt ec- ecb ecc ece ecj eck eco ecr ect eeb eec eee eek eeo eer eet ejc ejo ejt ekb ekc eke eko ekr ekt eo- eob eoc eoe eok eoo eor eot erb erc ere erk ero err ert etb etc ete etj etk eto etr ett jbc jbj jbk jbo jbr jbt jcb jcc jce jck jco jcr jct jeb jec jee jej jek jeo jer jet jjb jjc jjj jjk jjr jkb jkk jko jkr jkt job joc joe joj jok joo jor jot jrb jrc jrk jro jrr jrt jtb jtc jte jtk jtr jtt k-t kbb kbc kbe kbk kbo kbr kcb kcc kce kck kcr kct ke- keb kec kee kek keo ker ket kjb kjc kje kjr kkb kkc kke kkk kkr kkt kob koc koe kok koo kor kot krc krk kro krr krt ktb ktc kte ktj ktk kto ktr ktt ob- obb obc obe obj obk obo obr obt oc- ocb occ ocj ock oco ocr oct oeb oec oee oeo oer oet ojb ojc oje ojo okb okc oke okj okk oko okr oo- oob ooc ook ooo oor oot or- orb orc ore ork oro orr ort ot- otb otc ote otk oto otr ott rbb rbc rbe rbk rbo rbr rbt rcb rcc rce rcj rco rcr rct re- reb rec ree rek reo rer ret rjc rjk rjr rkb rkc rke rkk rko rkt rob roc roe roj rok roo ror rot rrb rrc rrk rrr rrt rtb rtc rte rtj rtk rto rtr rtt tbb tbc tbe tbj tbk tbo tbr tbt tcb tcc tce tcj tck tco tcr tct te- teb tec tee tej tek teo ter tet tjc tje tjo tjr tkb tkc tke tkk tko tkr tkt to- tob toc toe toj tok too tor tot trb trc tre trk tro trr trt ttb ttc tte ttk tto ttr ttt

bbbb bbeb bbet bbrc bcbc bccc bcec bcer bcet bcor bctc bebb bebe bebo beck beeb beej beek beer beet beke beko beo- beok beor beot berc bere berk bero berr bert betc bete beto bett bjcc bjec bobb bobe bobo boce bock boco boec boee boeo boer boet bojo bojt boke boko boob booc booe book boor boot bor- bore borj bork boro borr bort botb bote boto bott brcb brce breb brec bree brek breo brer bret brje brkb brob broc broe brok broo bror brot brrr brtc btcc btec btek btob btor btrc btrt bttb c-bo cbbc cbcc cbce cbcr cbct cbec cbee cber cbet cbkj cbko cbkr cbot cbre cbrj cbrt cbtc ccbc cccb cccc ccee ccjo ccob ccoc ccrc ccre ccrt cctb cctc cctt cec- cece ceco cect ceeb ceec cejc ceke ceor cer- cerc cere cero cert cet- cete ceto cjbc cjbk cjcb cjcj cjob cjor cjrb cjrc cjrj cjtr ckbc ckbe ckck ckco cker ckjr ckob ckoc ckoo ckor ckot ckrc cktb cobb cobe cobo coce cock coco coct cojo cok- coke coko coob cook coot cor- corb corc core cork coro corr cort cotb cotc cote coto cott crbc crcc crce crcr cre- creb crec cree creo cret crkc crob croc croe crok croo cror crot crrt crtc ctec ctor ctot ctrc ebbc ebbo ebbr ebcc eber eboe eboo ebor ebro ecbc ecbe eccb eccc ecce ecco ecct ecko eco- ecot ecrc ecrr ect- ectc ecto eeee eeke eeoc eerc eero eetc eete ejer ejob ejoo ejot ekco ekeb ekek eker eket eore eotc eoto erbb erbe ercc erce ereb erec erer eret erke erob eroc eroe eroo errc erre erro etbc etbr etcc etco etec etee eter etoe etok etre etro ette etto j-ro jbob jcbc jccc jcrc jebb jebe jeer jeet jeke jeok jere jerk jero jert jetb jete jett jjcc jobe jobo joce jock joco joee jojo jokb joke jook joor joot jore jork joro jort joto jott jrbr jrtc jtbc jtcc kbbb kbbc kbbe kbbk kbbo kbbr kbbt kbcb kbce kbck kbco kbcr kbct kbeb kbec kbee kbek kbeo kber kbet kbjc kbjk kbjt kbkb kbkk kbko kbkr kbob kboc kboe kbok kboo kbot kbrb kbrc kbre kbrj kbrk kbro kbrt kbtb kbtc kbte kbtk kbto kbtr kbtt kcbc kcbk kcbr kccb kccc kcck kccr kcct kceb kcec kcee kceo kcet kcjb kcjc kcjj kcjk kckc kckj kckk kcko kckr kcob kcoe kcor kcot kcrc kcro kcrr kcrt kctb kctc kcte kctj kcto kebb kebc kebe kebr kebt keck keco kecr keek keer keet kejb kejj kejo kekb kekc keke keko keoj keok ker- kerb kerc kere kerk kero kerr kert ket- ketc kete ketk keto ketr kett kjbb kjbr kjcb kjcc kjce kjck kjcr kjct kjee kjer kjet kjjj kjjk kjjo kjjr kjjt kjke kjkj kjkk kjkt kjoc kjoe kjoj kjok kjor kjot kjrb kjrc kjrt kjtt kkbb kkbe kkbj kkbo kkbr kkbt kkcb kkcj kkck kkco kkcr kkct kkjb kkjk kkkj kkkk kkob kkoj kkoo kkor kkot kkrb kkrc kkre kkrk kkro kkrr kkrt kktc kktk kobb kobc kobe kobk kobo kobr kocb kock koct kojb koje kojo kokb kokc koke kokk koko kokr koob kooc kook kooo koor koot korb korc kore kork koro korr kort kotb kotc kote kotk koto kotr kott krbb krbe krbk krbr krbt krcb krcc krce krco