-ic -ol bbb bbc bbi bbl bbo bbs bbt bcb bcc bci bcl bco bcs bct bi- bib bic bii bil bio bis bit blb blc bli bll blo bls blt bob boc boi bol boo bos bot bsb bsc bsi bsl bso bss bst btb btc bti btl bto bts btt c-- cbb cbc cbi cbl cbo cbs cbt ccb ccc cci ccl cco ccs cct ci- cib cic cii cil cio cis cit cl- clb clc cli cll clo cls clt co- cob coc coi col coo cos cot csb csc csi csl cso css cst ctb ctc cti ctl cto cts ctt ibb ibc ibi ibl ibo ibs ibt icb icc ici icl ico ics ict iib iic iii iil iio iis iit il- ilb ilc ili ill ilo ils ilt io- iob ioc ioi iol ioo ios iot is- isb isc isi isl iso iss ist itb itc iti itl ito its itt lbb lbc lbi lbl lbo lbs lbt lcb lcc lci lcl lco lcs lct lib lic lii lil lio lis lit llb llc lli lll llo lls llt lob loc loi lol loo los lot lsb lsc lsi lsl lso lss lst ltb ltc lti ltl lto lts ltt o-i ob- obb obc obi obl obo obs obt oc- ocb occ oci ocl oco ocs oct oib oic oii oil oio ois oit olb olc oli oll olo ols olt oo- oob ooc ooi ool ooo oos oot os- osb osc osi osl oso oss ost ot- otb otc oti otl oto ots ott sbb sbc sbi sbl sbo sbs sbt scb scc sci scl sco scs sct sib sic sii sil sio sis sit slb slc sli sll slo sls slt sob soc soi sol soo sos sot ss- ssb ssc ssi ssl sso sss sst stb stc sti stl sto sts stt tbb tbc tbi tbl tbo tbs tbt tcb tcc tci tcl tco tcs tct tib tic tii til tio tis tit tlc tli tll tlo tls tlt to- tob toc toi tol too tos tot tsb tsc tsi tsl tso tss tst ttb ttc tti ttl tto tts ttt

bbbb bbbs bbci bblb bbls bcbc bcbs bccc bcci bccl bccs bcis bcit bcos bcsc bcsl bcss bctc bcts bibb bibi bibl bibo bibs bicc bici bico bics biis bili bill bilo bils bilt bio- bioc bioi biol bios biot bis- bisc bisl biso biss bist bitc bito bits bitt blbt blic blio blis blit blls blob bloc bloo blot blss blst blts bobb bobi bobo bobs boco bocs boi- boii boil bois boit boli boll bolo bols bolt boob booc bool boos boot bosc bosi boso boss bost botb boti boto bots bott bsci bscs bsic bslc bsos bssc bsts btcc btcl btcs btob btss bttb c-bo cbbc cbbs cbcc cbcl cbcs cbct cbit cblb cblc cbol cbot cbsc cbsi cbtc cbtl ccbc cccb cccc ccci cccl cccs ccic ccii ccil ccis cclc ccli ccls ccob ccoc ccsi ccsl ccss ccst cctb cctc cctl cctt cibc cibi cibo cicc cici cico cics cict ciii ciis ciit cili cill cilo cils cilt ciob cios cis- cisc cisl ciss cist citb citi citl cito cits citt clib clic clii clio clis clit clob cloo clos clot clsc cltb cltc clts cobb cobi cobo cobs coco coct coil cois coit col- colb coli coll colo cols colt coob cool coos coot cosc cosi cosl coso coss cost cotb cotc coti coto cots cott cscb cscc csci cscl csco cscs csib csio csis csit csob csos csot cstc csto csts ctbi ctbs ctic ctls ctol ctos ctot ctsc ctss ctts ibcs ibis ibos ibot ibss ibtb ibtc ibtl ibts icbc icbs iccb iccc icci iccl icco iccs icct icis icll icoc icos icsb icsc icsi icss icst icts iiii iiio iiis iiit iioi iioo iios iisc iisi iist iitt ilbc ilic ilio ilis ilit ill- illi illo ills illt iloc iloo ilos ilot ilts iobi ioci ioii ioio ioit iolo iooi iooo ioos ioso ioto isbl isbt iscc isci isco iscs isct isic isil isis isit isls iso- isoc isol isos issc issi isso isss istc isti isto ists itbs itcs itic itil itis itll itoi itol itoo itos itsi itso itto lbcc lbos lbsc lcbc lccc lccs lcis lcls lcsc lctl lcto lcts libc libo libs lico lics lict liii liis lilb lili lill lilo lils lilt lio- lios lisi liso liss list litb liti litl lito lits litt llbs llcc llcs lllc llll lloc lloo lob- lobb lobi lobo lobs locc loci loco locs loic lois loit loli loll lolo lols loob looc lool loos loot losc losi loso loss lost loti lotl loto lots lott lscb lsco lscs lsso lsts ltbl ltcc ltci ltcs ltib ltsi lttc obbo obis obit obls oboi obol obos obot obss obst obts ocbc occc occi occt ocis oclc ocos oct- octi octo octs oici oiii oils oios oisc oist oitc oiti olbo olcc olib olic olio olis olit olli ollo olos olot olsi olst oobi oolo oooo ooos oosi oost ootb oots oscc osci oscl osco osii osis osli oslo osoi osoo osos ossb ossi osso ostc osti osts otbs otcl otic otis otit oto- otoo otos otso otti otto otts s-ib s-ic s-ii s-os sbbs sbcc sbcs sbct sbic sbot sbsi sbst sbtc scbi sccc sccl sccs scct sci- scic scil scio scis scit scl- sclc scls scob scol scoo scot scsc scsi scsl scso scst sctc sctl scto scts sibc sibi sibo sibs sicc sici sico sics siit sil- silc sili sill silo sils silt siol sios siot sisc sisi siss sist sit- sitc siti sito sits sitt sl-i slcc slib slic slit slob sloc sloo slos slot slsc slst slts sobo sobs sobt soci socl soco socs soic soil sois soit soli soll solo sols solt sool soos soot sosi soso soss sost sotc sotl soto sots sscc ssci sscs ssis ssit sslc sslt ssoc ssot sssb sssc sssi ssss sstb