bbb bbc bbm bbo bbr bbs bbt bcb bcc bcm bco bcr bcs bct bmb bmc bmm bmo bmr bms bmt bob boc bom boo bor bos bot brb brm bro brr brs brt bsb bsc bsm bso bsr bss bst btb btc btm bto btr bts btt c-- cbb cbc cbm cbo cbr cbs cbt ccb ccc ccm cco ccr ccs cct cmb cmc cmm cmo cmr cms cmt co- cob coc com coo cor cos cot crb crc crm cro crr crs crt csb csc csm cso csr css cst ctb ctc ctm cto ctr cts ctt m-o m-r mbb mbc mbm mbo mbr mbs mbt mc- mcb mcc mcm mco mcr mcs mct mmb mmc mmm mmo mmr mms mmt mob moc mom moo mor mos mot mrb mrc mrm mro mrr mrs mrt msb msc msm mso msr mss mst mtb mtc mtm mto mtr mts mtt ob- obb obc obm obo obr obs obt oc- ocb occ ocm oco ocr ocs oct om- omb omc omm omo omr oms omt oo- oob ooc oom ooo oor oos oot or- orb orc orm oro orr ors ort os- osb osc osm oso osr oss ost ot- otb otc otm oto otr ots ott rbb rbc rbm rbo rbr rbs rbt rcb rcc rcm rco rcr rcs rct rmb rmc rmm rmo rmr rms rmt rob roc rom roo ror ros rot rrb rrc rrm rrr rrs rrt rsb rsc rsm rso rsr rss rst rtb rtc rtm rto rtr rts rtt sbb sbc sbm sbo sbr sbs sbt scb scc scm sco scr scs sct smb smc smm smo smr sms smt sob soc som soo sor sos sot sr- srb src srm sro srr srs srt ss- ssb ssc ssm sso ssr sss sst stb stc stm sto str sts stt tbb tbc tbm tbo tbr tbs tbt tcb tcc tcm tco tcr tcs tct tmb tmc tmm tmo tmr tms tmt to- tob toc tom too tor tos tot trb trc trm tro trr trs trt tsb tsc tsm tso tsr tss tst ttb ttc ttm tto ttr tts ttt

bbbb bbbs bbcm bbrc bcbc bcbs bccc bccm bccs bcms bcor bcos bcrs bcsc bcsm bcss bctc bcts bmoc bmtc bmts bobb bobo bobs bocm boco bocs bomb boms bomt boob booc boom boor boos boot bor- borm boro borr bors bort bosc bosm boso boss bost botb boto bots bott brcb brmc brob broc brom broo bror bros brot brrm brrr brrs brsb brsr brst brtc bscs bsms bsmt bsos bsrm bssc bssm bsts btcc btcs btob btor btrc btrt btss bttb c-bo cbbc cbbs cbcc cbcm cbcr cbcs cbct cbms cbot cbrm cbrt cbsc cbsm cbtc ccbc cccb cccc cccm cccs ccmb ccmc ccmm ccms ccob ccoc ccom ccrc ccrs ccrt ccss ccst cctb cctc cctt cmbc cmbs cmcc cmcs cmmb cmmc cmms cmoc cmos cmot cmrr cmrs cmsc cmst cmtc cobb cobo cobs coco coct com- comb comc comm como comr coms coob coom coos coot cor- corb corc corm coro corr cors cort cosc cosm coso coss cost cotb cotc coto cots cott crbc crcc crcr crmb crmo crms crob croc crom croo cror crot crrt crss crst crtc crtm crts csbm cscb cscc csco cscr cscs csmc csob csom csor csos csot csrc csrs cssm cssr cstc cstm csto cstr csts ctbs ctmo ctor ctos ctot ctrc ctrm ctrs ctsc ctss ctts mbbs mbcs mbms mbrs mcbc mccc mcmc mcmt mcot mcrc mcss mcst mctc mcts mmcc mmcm mmcs mmct mmmc mmmm mmms mmor mmrc mmsc mmst mmts mobb mobo mobs moco mocs momo moms moob mooc moor moos moot morb moro mors mort mosc moso moss most motb motm moto mots mott mr-c mrbb mrbm mrbs mrcb mrcc mrcs mrmc mrrc mrsc mrtm mrts mrtt mscc msco msmb msmc msmm msms msor msrb msrt mssm mssr msst mstc mstr msts mtbc mtbo mtbs mtcr mtom mtor mtrc mtrr mtss mtst mttr mtts obbo obor obos obot obro obsr obss obst obts ocbc occc occt ocms ocom ocos ocro ocrr ocrs oct- octo octs ombo omo- omoo omor omro oocr ooms oooo ooos oort oost ootb oots orbb orbo orbs orco orcs ormo oro- orom oror oros orot orro orrs orso ortc orto orts oscc osco osm- osmo osoo osor osos osro ossb osso ostc ostr osts otbs oto- otoo otor otos otro otrs otso otto otts rbbb rbbr rbbs rbms rbss rbst rcbc rcbo rccb rccc rccs rcms rcos rcsc rcss rctc rcts rmbs rmsc rmst rob- robb robo robs robt rocc roco rocs romb romm romo roms roob room roor roos root rorc roro rort rosc roso ross rost rotc roto rotr rots rott rrmc rrrr rscc rscs rsos rsts rtcc rtcm rtmc rtms rtss rtts s-os sbbs sbcc sbcs sbct sbmc sbor sbot sbst sbtc sccc sccm sccs scct scmc scmm scmo scms scob scom scoo scor scot scr- scrc scrs scsc scso scsr scst sctc scto sctr scts smbc smcc smoc smos smot smrt smsc smss smtc sobo sobr sobs sobt socm soco socr socs somb somm somo soom soor soos soot sorb sorm soro sorr sors sort soso soss sost sotc sotm soto sots srbc srcc srct srmc sros srtr ssbr sscc sscs ssmc ssoc ssot ssrc ssrm ssrs sssb sssc sssm ssss sstb sstc ssts stbc stbs stcc stcs stmc stms stmt stob stom stoo stor stos stot strc stro strs stsm stss sttc sttr t-mo tbbs tbcb tbcc tbrb tbst tcbs tccc tcom tcos tctc tcts tmbc tmbr tmcc tmcm tmos tmro tmsc tmtt tobo tobs tobt toco tomb tomm tomo toms tomt toom toor toos toot torc torm toro torr tors tort tosb tosc toso toss tost totc totm toto totr tots tott trcc trmb trms troc trom troo tros trot trst trtc trtr tsbc tscc tsmc tsob tsom tsos tssm tssr tsst tstc tstm tsts ttbb ttms ttss tttt

bbsrc bcbst bmcsr bmocs bmrst bo-bo boboc bobos bobr bobst bobts