bbb bbc bbf bbk bbm bbo bbr bbt bcb bcc bcf bck bcm bco bcr bct bfb bfc bff bfm bfo bfr bft bkb bkc bkf bkk bkm bko bkr bkt bmb bmc bmf bmk bmm bmo bmr bmt bob boc bof bok bom boo bor bot brb brf brk brm bro brr brt btb btc btf btk btm bto btr btt c-- cbb cbc cbf cbk cbm cbo cbr cbt ccb ccc ccf cck ccm cco ccr cct cfb cfc cff cfk cfm cfo cfr cft ckb ckc ckm cko ckt cmb cmc cmf cmk cmm cmo cmr cmt co- cob coc cof cok com coo cor cot crb crc crf crk crm cro crr crt ctb ctc ctf ctk ctm cto ctr ctt fbb fbc fbf fbk fbm fbo fbr fbt fcb fcc fcf fck fcm fco fcr fct ffc fff ffk ffm ffo ffr fft fkb fkc fkf fkk fkm fkt fmb fmc fmf fmm fmo fmr fmt fob foc fof fok fom foo for fot frb frc frf frk frm fro frr frt ftb ftc ftf ftk ftm fto ftr ftt k-t kbb kbc kbf kbk kbm kbo kbr kcb kcc kck kcm kcr kct kfc kff kfm kfo kkb kkc kkk kkm kkr kkt kmb kmc kmf kmk kmm kmo kmt kob koc kof kok kom koo kor kot krc krf krk kro krr krt ktb ktc ktf ktk ktm kto ktr ktt m-f m-o m-r mbb mbc mbf mbk mbm mbo mbr mbt mc- mcb mcc mcf mck mcm mco mcr mct mfb mfc mff mfm mfo mfr mft mkb mkc mkk mkm mko mkr mkt mmb mmc mmf mmk mmm mmo mmr mmt mob moc mof mok mom moo mor mot mrb mrc mrf mrk mrm mro mrr mrt mtb mtc mtf mtk mtm mto mtr mtt ob- obb obc obf obk obm obo obr obt oc- ocb occ ocf ock ocm oco ocr oct of- ofb ofc off ofm ofo ofr oft okb okc okk oko okr om- omb omc omf omm omo omr omt oo- oob ooc oof ook oom ooo oor oot or- orb orc orf ork orm oro orr ort ot- otb otc otf otk otm oto otr ott rbb rbc rbf rbk rbm rbo rbr rbt rcb rcc rcf rcm rco rcr rct rfb rfc rff rfk rfm rfo rfr rft rkb rkc rkf rkk rkm rko rkt rmb rmc rmf rmm rmo rmr rmt rob roc rof rok rom roo ror rot rrb rrc rrf rrk rrm rrr rrt rtb rtc rtf rtk rtm rto rtr rtt tbb tbc tbf tbk tbm tbo tbr tbt tcb tcc tcf tck tcm tco tcr tct tfb tfc tff tfk tfm tfo tfr tft tkb tkc tkk tkm tko tkr tkt tmb tmc tmf tmk tmm tmo tmr tmt to- tob toc tof tok tom too tor tot trb trc trf trk trm tro trr trt ttb ttc ttf ttk ttm tto ttr ttt

bbbb bbcm bbfc bbrc bcbc bccc bccm bcfc bcfm bcof bcor bctc bftt bmfc bmoc bmtc bobb bobo bock bocm boco boff boko bomb bomt boob booc boof book boom boor boot bor- borf bork borm boro borr bort botb boto bott brcb brfc brfm brkb brmc brob broc brok brom broo bror brot brrm brrr brtc btcc btfc btob btor btrc btrt bttb c-bo cbbc cbcc cbcm cbcr cbct cbfb cbfc cbkm cbko cbkr cbot cbrm cbrt cbtc cbtf ccbc cccb cccc cccf cccm ccfc ccff cckm ccmb ccmc ccmm ccob ccoc ccom ccrc ccrf ccrt cctb cctc cctt cfbc cfbr cfbt cfcb cfcf cfcm cfco cffb cffr cfmb cfmo cfom cfor cfrb cfrt cftc cftk cftr ckbc ckck ckcm ckco ckfr ckmo ckob ckoc ckom ckoo ckor ckot ckrc ckrm cktb cmbc cmcc cmfb cmmb cmmc cmoc cmot cmrr cmtc cobb cobo cock coco coct cofc coff coft cok- coko com- comb comc comm como comr coob coof cook coom coot cor- corb corc corf cork corm coro corr cort cotb cotc coto cott crbc crcc crcr crfc crkc crmb crmo crob croc crok crom croo cror crot crrt crtc crtf crtm ctcf ctfc ctfo ctmo ctor ctot ctrc ctrm f--k fbom fccf fcmr fcot fcto ffcc ffff ffrr fftf fobt fock foco fofo fomc fomo fomt foof fook foom foot for- forb fork form foro forr fort fotm foto fott frbc frcc frfc frob from frot ft-c ftfc kbbb kbbc kbbf kbbk kbbm kbbo kbbr kbbt kbcb kbck kbco kbcr kbct kbfb kbfc kbff kbfk kbfm kbfo kbfr kbft kbkb kbkf kbkk kbko kbkr kbmb kbmc kbmo kbmr kbmt kbob kboc kbok kboo kbot kbrb kbrc kbrf kbrk kbro kbrt kbtb kbtc kbtf kbtk kbtm kbto kbtr kbtt kcbc kcbf kcbk kcbr kccb kccc kcck kccr kcct kcfb kcfc kcfm kcfo kcft kckc kckf kckk kckm kcko kckr kcmb kcmc kcmf kcmk kcmm kcmo kcmr kcmt kcob kcof kcom kcor kcot kcrc kcro kcrr kcrt kctb kctc kcto kfbc kfbk kfbt kfcf kfcm kfco kfcr kffb kfff kffk kffm kfkb kfmb kfmf kfmk kfmm kfmo kfmr kfok kfom kfoo kfor kfrc kfrm kfro kfrr kftc kftk kftm kftt kkbb kkbo kkbr kkbt kkcb kkck kkcm kkco kkcr kkct kkfm kkfr kkft kkkk kkmc kkmk kkmo kkmr kkmt kkob kkoo kkor kkot kkrb kkrc kkrf kkrk kkro kkrr kkrt kktc kktk kmbc kmbr kmcb kmcc kmcf kmcm kmco kmcr kmfc kmfm kmfr kmkf kmkk kmko kmkt kmmf kmmk kmmm kmmo kmmr kmmt kmob kmoc kmok kmom kmor kmot kmrb kmrc kmrf kmro kmrr kmtb kmtc kmtk kmtr kmtt kobb kobc kobk kobo kobr kocb kocf kock kocm koct kofc koff kofk kofm kofo koft kokb kokc kokf kokk koko kokr komb komc komo komr komt koob kooc kook kooo koor koot korb korc korf kork koro korr kort kotb kotc kotk kotm koto kotr kott krbb krbk krbm krbr krbt krcb krcc krcm krco krfc krff krfm krfo krft krkc krkk krko krkr krmb krmc krmo krmr krmt krob kroc krof krok krom kroo