-ic -ol bbb bbc bbi bbl bbo bbr bbs bcb bcc bci bcl bco bcr bcs bi- bib bic bii bil bio bir bis blb blc bli bll blo blr bls bob boc boi bol boo bor bos brb bri brl bro brr brs bsb bsc bsi bsl bso bsr bss c-- cbb cbc cbi cbl cbo cbr cbs ccb ccc cci ccl cco ccr ccs ci- cib cic cii cil cio cir cis cl- clb clc cli cll clo clr cls co- cob coc coi col coo cor cos crb crc cri crl cro crr crs csb csc csi csl cso csr css ibb ibc ibi ibl ibo ibr ibs icb icc ici icl ico icr ics iib iic iii iil iio iir iis il- ilb ilc ili ill ilo ilr ils io- iob ioc ioi iol ioo ior ios ir- irb irc iri irl iro irr irs is- isb isc isi isl iso isr iss lbb lbc lbi lbl lbo lbr lbs lcb lcc lci lcl lco lcr lcs lib lic lii lil lio lir lis llb llc lli lll llo llr lls lob loc loi lol loo lor los lrb lrc lri lro lrr lrs lsb lsc lsi lsl lso lsr lss o-i ob- obb obc obi obl obo obr obs oc- ocb occ oci ocl oco ocr ocs oib oic oii oil oio oir ois olb olc oli oll olo ols oo- oob ooc ooi ool ooo oor oos or- orb orc ori orl oro orr ors os- osb osc osi osl oso osr oss rbb rbc rbi rbl rbo rbr rbs rcb rcc rci rcl rco rcr rcs rib ric rii ril rio rir ris rlc rli rll rlo rlr rls rob roc roi rol roo ror ros rrb rrc rri rrl rrr rrs rsb rsc rsi rsl rso rsr rss sbb sbc sbi sbl sbo sbr sbs scb scc sci scl sco scr scs sib sic sii sil sio sir sis slb slc sli sll slo slr sls sob soc soi sol soo sor sos sr- srb src sri srl sro srr srs ss- ssb ssc ssi ssl sso ssr sss

bbbb bbbs bbci bblb bbls bbrc bcbc bcbs bccc bcci bccl bccs bcis bcor bcos bcrs bcsc bcsl bcss bibb bibi bibl bibo bibs bicc bici bico bics biis bili bill bilo bils bio- bioc bioi biol bios birb biri birl biro birr birs bis- bisc bisl biso biss blic blio blir blis blls blob bloc bloo blrc blss bobb bobi bobo bobs boco bocs boi- boii boil bois boli boll bolo bols boob booc bool boor boos bor- bori boro borr bors bosc bosi boso boss brcb bric bril brio bris brls brob broc brol broo bror bros brrr brrs brsb brsr bsci bscs bsic bslc bsos bssc c-bo cbbc cbbs cbcc cbcl cbcr cbcs cbir cblb cblc cbol cbrl cbsc cbsi ccbc cccb cccc ccci cccl cccs ccic ccii ccil ccir ccis cclc ccli ccls ccob ccoc ccrc ccri ccrl ccrs ccsi ccsl ccss cibc cibi cibo cicc cici cico cicr cics ciii ciis cili cill cilo cils ciob cior cios cirb circ ciri cirl ciro cirr cirs cis- cisc cisl cisr ciss clib clic clii clio clir clis clob cloo clor clos clri clro clrs clsc cobb cobi cobo cobs coco coil coir cois col- colb coli coll colo cols coob cool coos cor- corb corc cori corl coro corr cors cosc cosi cosl coso coss crbc crcc crcr crib cric cris crls crob croc crol croo cror crss cscb cscc csci cscl csco cscr cscs csib csio csir csis cslr csob csor csos csrc csrs cssr ibcs ibis ibos ibrc ibri ibro ibss icbc icbs iccb iccc icci iccl icco iccr iccs icis icll iclr icoc icor icos icrc icrr icrs icsb icsc icsi icsr icss iiii iiio iiis iioi iioo iios iirc iirs iisc iisi iisr ilbc ilic ilio ilir ilis ill- illi illo ills iloc iloo ilos iobi ioci ioii ioio iolo iooi iooo ioos iori iors ioso ircc ircs iri- iric iril irio iris irlb irob iroc irrc irri irrs isbl iscc isci isco iscr iscs isic isil isis isls iso- isoc isol isor isos isri issc issi isso issr isss lbcc lblr lbos lbrs lbsc lcbc lccc lccs lcis lcls lcor lcrl lcrs lcsc lcsr libc libo libr libs lico licr lics liii liir liis lilb lili lill lilo lils lio- lior lios lirc liri lirl liro lirr lirs lisi liso liss llbs llcc llcs lllc llll lloc lloo lob- lobb lobi lobo lobs locc loci loco locs loic loir lois loli loll lolo lols loob looc lool loor loos lori loro lors losc losi loso loss lrcs lric lroc lroi lrrc lrrr ls-r lscb lsco lscs lsrc lsso lssr obbo obis obls oboi obol obor obos obri obro obsr obss ocbc occc occi ocis oclc ocos ocrl ocro ocrr ocrs oici oiii oils oios oisc olbo olcc olib olic olio olis olli ollo olor olos olsi oobi oocr oolo oooo ooos oosi orbb orbi orbo orbs orci orco orcs ori- oric oril orio oris orlo oro- oror oros orri orro orrs orsi orso oscc osci oscl osco osii osis osli oslo osoi osoo osor osos osro ossb ossi osso rbbb rbbr rbbs rbcl rbis rbsl rbss rcbc rcbo rccb rccc rccs rcic rcis rcls rcos rcsc rcsi rcsl rcss rib- ribo ribs ricc rico rics riis rill rilo riol rios riri rirs risc risi riso riss rlcs rlls rob- robb robi robo robs rocc roco rocs roil roio roir rois roll rolo roob rooi rool roor roos rorc rori roro rosc rosi roso ross rrrr rsbi rscc rscs rsis rslc rsos rssl s-ib s-ic s-ii s-os sbbs sbcc sbcs sbic sbor sbsi scbi sccc sccl sccs sci- scic scil scio scir scis scl- sclc scls scob scol scoo scor scr- scrc scri scrs scsc scsi scsl scso scsr sibc sibi sibo sibs sicc sici sico sics sil- silc sili sill silo sils siol sior