-ic bbb bbc bbg bbi bbk bbo bbs bbt bcb bcc bcg bci bck bco bcs bct bgb bgc bgg bgi bgk bgo bgs bgt bi- bib bic big bii bik bio bis bit bkb bkc bkg bkk bko bks bkt bob boc bog boi bok boo bos bot bsb bsc bsg bsi bsk bso bss bst btb btc btg bti btk bto bts btt c-- cbb cbc cbg cbi cbk cbo cbs cbt ccb ccc ccg cci cck cco ccs cct cgb cgc cgg cgi cgo cgs cgt ci- cib cic cig cii cik cio cis cit ckb ckc cki cko cks ckt co- cob coc cog coi cok coo cos cot csb csc csg csi csk cso css cst ctb ctc ctg cti ctk cto cts ctt gbc gbg gbi gbk gbo gbs gbt gcb gcc gcg gci gck gco gcs gct ggb ggc ggg ggi ggo ggs ggt gib gic gig gii gik gio gis git gkb gko gks gkt gob goc gog goi gok goo gos got gsb gsc gsg gsi gsk gso gss gst gtb gtc gtg gti gtk gto gts gtt ibb ibc ibg ibi ibk ibo ibs ibt icb icc icg ici ick ico ics ict igb igc igg igi igk igo igs igt iib iic iii iio iis iit ikb ikc iki ikk iko iks ikt io- iob ioc iog ioi ioo ios iot is- isb isc isg isi isk iso iss ist itb itc itg iti itk ito its itt k-t kbb kbc kbi kbk kbo kbs kcb kcc kcg kci kck kcs kct kgb kgc kgi kgo kgs kib kic kig kii kik kio kis kit kkb kkc kki kkk kks kkt kob koc kog koi kok koo kos kot ksb ksc ksg ksi ksk kso kss kst ktb ktc ktg ktk kto kts ktt o-i ob- obb obc obg obi obk obo obs obt oc- ocb occ ocg oci ock oco ocs oct ogc ogg ogi ogo ogs ogt oib oic oii oik oio ois oit okb okc okg oki okk oko oks oo- oob ooc oog ooi ook ooo oos oot os- osb osc osg osi osk oso oss ost ot- otb otc otg oti otk oto ots ott sbb sbc sbg sbi sbk sbo sbs sbt scb scc scg sci sck sco scs sct sgb sgc sgg sgi sgk sgo sgs sgt sib sic sig sii sik sio sis sit sk- skb skc skg ski skk sko sks skt sob soc sog soi sok soo sos sot ss- ssb ssc ssg ssi ssk sso sss sst stb stc stg sti stk sto sts stt tbb tbc tbg tbi tbk tbo tbs tbt tcb tcc tcg tci tck tco tcs tct tgb tgc tgg tgi tgk tgo tgs tgt tib tic tig tii tik tio tis tit tkb tkc tkg tkk tko tks tkt to- tob toc tog toi tok too tos tot tsb tsc tsg tsi tsk tso tss tst ttb ttc ttg tti ttk tto tts ttt

bbbb bbbs bbci bcbc bcbg bcbs bccc bcci bccs bcgs bcis bcit bcos bcsc bcss bctc bcts bggs bgst bibb bibi bibo bibs bicc bicg bici bick bico bics bigb bigc bigg bigo bigs bigt biis biko bio- bioc biog bioi bios biot bis- bisc bisk biso biss bist bitc bito bits bitt bobb bobi bobo bobs bock boco bocs bogg bogi bogo bogs bogt boi- boii bois boit boki boko boks boob booc boog book boos boot bosc bosi bosk boso boss bost botb boti boto bots bott bsci bscs bsgs bsic bskt bsos bssc bsts btcc btcs btob btss bttb c-bo cbbc cbbs cbcc cbcs cbct cbgb cbit cbkg cbko cbot cbsc cbsi cbtc ccbc cccb cccc ccci cccs ccgc ccgs ccgt ccic ccii ccis ccob ccoc ccsg ccsi ccss ccst cctb cctc cctt cgcc cgcg cggs cgis cgsb cgss cgst cibc cibi cibo cicc cici cico cics cict cigi cigs ciii ciis ciit ciko ciob cios cis- cisc cisk ciss cist citb citg citi cito cits citt ckbc ckbi ckck ckco ckcs ckgo ckob ckoc ckoi ckoo ckos ckot cksb ckso ckst cktb ckts cobb cobi cobo cobs cock coco coct cogi cogo cogs cois coit cok- coko coob cook coos coot cosc cosi coso coss cost cotb cotc coti coto cots cott cscb cscc csci csco cscs csib csik csio csis csit csks csob csos csot cstc cstg csto csts ctbi ctbs ctic ctos ctot ctsc ctss ctts gbbo gbbs gc-c gcbc gccc gccs gcic gcii gcos gcss gcst gctc gcts ggbt gggg ggss gibb gibs gick gigg gigi gigo gigs giis giog gioi giss gist gito gits gobi gobo gobs gogi gogo gogs gois goit goog gooi gook goos goot gosi goso goss gost goti goto gots gott gsis gskb gsoc gsos gtco gtcs gtos i-go ibcs ibis ibos ibot ibss ibtb ibtc ibts icbc icbs iccb iccc icci icco iccs icct icgc icis icks icoc icos icsb icsc icsi icss icst icts igbc igbo igcc iggs igis igkc igoo igot igso iiii iiio iiis iiit iioi iioo iios iisc iisi iist iitt ikig ikki ikko ikoo iobi iocg ioci iogt ioii ioio ioit ioko iooi iooo ioos ioso ioto isbt iscc isci isco iscs isct isgc isic isis isit isko iso- isoc isok isos issc issi isso isss istc isti isto ists itbs itcs itgc itgo itgs itic itis itko itoi itoo itos itsi itso itto k-ci k-os kbbb kbbc kbbg kbbi kbbk kbbo kbbs kbbt kbcb kbci kbck kbco kbcs kbct kbgb kbgg kbgo kbgt kbib kbic kbig kbik kbio kbis kbit kbkb kbkg kbkk kbko kbob kboc kboi kbok kboo kbos kbot kbsb kbsg kbsi kbsk kbso kbss kbst kbtb kbtc kbtk kbto kbts kbtt kcbc kcbi kcbk kcbs kccb kccc kcci kcck kcct kcgc kcgi kcgs kcic kcii kcis kcit kckc kckk kcko kcob kcog kcos kcot kcsb kcsc kcsg kcsi kcss kcst kctb kctc kcti kcto kgbb kgbc kgbt kgcb kgcc kggg kggi kggo kgio kgks kgos kgot kgso