-ic bbb bbc bbi bbo bbr bbs bbt bby bcb bcc bci bco bcr bcs bct bcy bi- bib bic bii bio bir bis bit biy bob boc boi boo bor bos bot boy brb bri bro brr brs brt bry bsb bsc bsi bso bsr bss bst bsy btb btc bti bto btr bts btt bty by- byc byi byo byr bys byt c-- cbb cbc cbi cbo cbr cbs cbt cby ccb ccc cci cco ccr ccs cct ci- cib cic cii cio cir cis cit co- cob coc coi coo cor cos cot coy crb crc cri cro crr crs crt cry csb csc csi cso csr css cst csy ctb ctc cti cto ctr cts ctt cty cyb cyc cyo cyr cys cyt ibb ibc ibi ibo ibr ibs ibt iby icb icc ici ico icr ics ict icy iib iic iii iio iir iis iit io- iob ioc ioi ioo ior ios iot ir- irb irc iri iro irr irs irt iry is- isb isc isi iso isr iss ist isy itb itc iti ito its itt ity iyc iyo iyr iys iyt iyy o-i ob- obb obc obi obo obr obs obt oby oc- ocb occ oci oco ocr ocs oct oib oic oii oio oir ois oit oo- oob ooc ooi ooo oor oos oot or- orb orc ori oro orr ors ort ory os- osb osc osi oso osr oss ost ot- otb otc oti oto otr ots ott oyi oyo oys rbb rbc rbi rbo rbr rbs rbt rcb rcc rci rco rcr rcs rct rib ric rii rio rir ris rit riy rob roc roi roo ror ros rot roy rrb rrc rri rrr rrs rrt rsb rsc rsi rso rsr rss rst rtb rtc rti rto rtr rts rtt rty ry- ryc ryo ryr rys ryy sbb sbc sbi sbo sbr sbs sbt sby scb scc sci sco scr scs sct sib sic sii sio sir sis sit sob soc soi soo sor sos sot soy sr- srb src sri sro srr srs srt sry ss- ssb ssc ssi sso ssr sss sst stb stc sti sto str sts stt sty sy- syb syc syi syr sys syt tbb tbc tbi tbo tbr tbs tbt tcb tcc tci tco tcr tcs tct tib tic tii tio tir tis tit tiy to- tob toc toi too tor tos tot toy trb trc tri tro trr trs trt try tsb tsc tsi tso tsr tss tst tsy ttb ttc tti tto ttr tts ttt tty tyc tyo tyr tys tyt ybc ybi ybr ybs yby ycc yci yco ycs ycy yii yio yir yis yit yob yoc yoi yoo yor yos yot yoy yrc yro yrs yrt ysb ysc ysi yso ysr yss yst ysy ytc yto ytr yts ytt yyb yyc yys yyt yyy

bbbb bbbs bbci bboy bbrc bbyo bcbc bcbs bccc bcci bccs bcis bcit bcor bcos bcrs bcsc bcss bctc bcts bibb bibi bibo bibs bicc bici bico bics biis bio- bioc bioi bios biot birb biri biro birr birs birt biry bis- bisc biso biss bist bisy bitc bito bits bitt biys bobb bobi bobo bobs boby boco bocs boi- boii bois boit boob booc boor boos boot bor- bori boro borr bors bort bory bosc bosi boso boss bost botb boti boto bots bott boty boyi boyo boys brcb bric brio bris brit brob broc broo bror bros brot brrr brrs brsb brsr brst brtc bry- bryo bsci bscs bsic bsos bssc bsts btcc btcs btob btor btrc btrt btry btss bttb byit byob byoc byoi byos byrt bysb bysi byso byss byst bysy byts c-bo cbbc cbbs cbcc cbcr cbcs cbct cbir cbit cbot cbrt cbry cbsc cbsi cbtc cbyt ccbc cccb cccc ccci cccs ccic ccii ccir ccis ccob ccoc ccrc ccri ccrs ccrt ccsi ccss ccst cctb cctc cctt cibc cibi cibo cicc cici cico cicr cics cict ciii ciis ciit ciob cior cios cirb circ ciri ciro cirr cirs cirt cis- cisc cisr ciss cist cisy citb citi cito cits citt city cobb cobi cobo cobs coby coco coct coir cois coit coob coos coot cor- corb corc cori coro corr cors cort cory cosc cosi coso coss cost cosy cotb cotc coti coto cots cott coty coyo coyr coys coyt crbc crcc crcr crib cric cris crit crob croc croo cror crot croy crrt crss crst crtc crts cry- cryb cryo crys cscb cscc csci csco cscr cscs csib csio csir csis csit csob csor csos csot csrc csrs cssr cstc csto cstr csts csys ctbi ctbs ctic ctor ctos ctot ctrc ctrs ctsc ctss ctts cybb cybc cybi cybo cyc- cycb cycc cycs cyrs cyrt cyst cyt- cytb cyto cyy- cyyc i-by ibcs ibis ibos ibot ibrc ibri ibro ibss ibtb ibtc ibts ibyi icbc icbs iccb iccc icci icco iccr iccs icct icis icoc icor icos icrc icrr icrs icrt icry icsb icsc icsi icsr icss icst icts iiii iiio iiis iiit iioi iioo iios iirc iirs iisc iisi iisr iist iitr iitt iobi ioby ioci ioii ioio ioit iooi iooo ioos iori iors ioso ioto irby ircc ircs iri- iric irio iris iriy irob iroc irrc irri irrs irti irts isbt iscc isci isco iscr iscs isct isic isis isit iso- isoc isor isos isri issc issi isso issr isss issy istc isti isto istr ists isty isys itbs itby itcs itic itis itoi itoo itor itos itri itrs itry itsi itso itsy itto itty iyos obbo obby obis obit oboi obor obos obot oboy obri obro obsr obss obst obts ocbc occc occi occt ocis ocos ocro ocrr ocrs oct- octi octo octs octy ocys oici oiii oios oirt oiry oisc oist oitc oiti oobi ooby oocr oooo ooos oort oory oosi oost ootb oots ooty orbb orbi orbo orbs orby orci orco orcs ori- oric orio oris orit oro- oror oros orot oroy orri orro orrs orry orsi orso orsy ortc orto orts orys osby