-er -th bbb bbc bbe bbh bbo bbr bbs bbt bcb bcc bce bch bco bcr bcs bct be- beb bec bee beh beo ber bes bet bhb bhc bhe bhh bho bhr bhs bht bob boc boe boh boo bor bos bot brb bre brh bro brr brs brt bsb bsc bse bsh bso bsr bss bst btb btc bte bth bto btr bts btt c-- cbb cbc cbe cbh cbo cbr cbs cbt ccb ccc cce cch cco ccr ccs cct ce- ceb cec cee ceh ceo cer ces cet ch- chb chc che chh cho chr chs cht co- cob coc coe coh coo cor cos cot crb crc cre crh cro crr crs crt csb csc cse csh cso csr css cst ctb ctc cte cth cto ctr cts ctt ebb ebc ebe ebh ebo ebr ebs ebt ec- ecb ecc ece ech eco ecr ecs ect eeb eec eee eeo eer ees eet ehb ehc ehe ehh eho ehr ehs eht eo- eob eoc eoe eoh eoo eor eos eot erb erc ere erh ero err ers ert es- esb esc ese esh eso esr ess est etb etc ete eth eto etr ets ett hbb hbc hbe hbh hbo hbr hbs hbt hcb hcc hce hch hco hcr hcs hct he- heb hec hee heh heo her hes het hhb hhc hhe hhh hho hhr hhs hht hob hoc hoe hoh hoo hor hos hot hr- hrb hrc hre hrh hro hrr hrs hrt hsb hsc hse hsh hsr hss hst htb htc hte hth hto htr hts htt ob- obb obc obe obh obo obr obs obt oc- ocb occ och oco ocr ocs oct oeb oec oee oeh oeo oer oes oet ohc ohe ohh oho ohr ohs oht oo- oob ooc ooh ooo oor oos oot or- orb orc ore orh oro orr ors ort os- osb osc ose osh oso osr oss ost ot- otb otc ote oth oto otr ots ott rbb rbc rbe rbh rbo rbr rbs rbt rcb rcc rce rch rco rcr rcs rct re- reb rec ree reh reo rer res ret rh- rhb rhc rhe rhh rho rhr rhs rht rob roc roe roh roo ror ros rot rrb rrc rrh rrr rrs rrt rsb rsc rse rsh rso rsr rss rst rtb rtc rte rto rtr rts rtt sbb sbc sbe sbh sbo sbr sbs sbt scb scc sce sch sco scr scs sct se- seb sec see seh seo ser ses set sh- shb shc she shh sho shr shs sht sob soc soe soh soo sor sos sot sr- srb src sre srh sro srr srs srt ss- ssb ssc sse ssh sso ssr sss sst stb stc ste sth sto str sts stt tbb tbc tbe tbh tbo tbr tbs tbt tcb tcc tce tch tco tcr tcs tct te- teb tec tee teh teo ter tes tet th- thb thc the thh tho thr ths tht to- tob toc toe toh too tor tos tot trb trc tre trh tro trr trs trt tsb tsc tse tsh tso tsr tss tst ttb ttc tte tth tto ttr tts ttt

-ose bbbb bbbs bbch bbeb bbet bbhs bbrc bcbc bcbs bccc bccs bcec bcer bces bcet bche bchs bcor bcos bcrs bcsc bcss bctc bcts bebb bebe bebo bech becs beeb beer bees beet behr behs beo- beor beos beot berc bere bero berr bers bert bes- bese besh beso bess best betc bete beth beto bets bett bhcc bher bhet bhhs bhor bhot bhrt bobb bobe bobo bobs boce boch boco bocs boec boee boeo boer boes boet boho bohr bohs boht boob booc booe booh boor boos boot bor- bore borh boro borr bors bort bosc bose bosh boso boss bost botb bote both boto bots bott brcb brce breb brec bree breo brer bres bret brhs brob broc broe broh broo bror bros brot brrr brrs brsb brsr brst brtc bscs bseb bsec bsee bser bses bset bshs bsos bssc bsse bsts btcc btcs btec bths btob btor btrc btrt btss bttb c-bo cbbc cbbs cbcc cbce cbcr cbcs cbct cbec cbee cber cbet cbhs cbot cbre cbrh cbrt cbsc cbse cbtc ccbc cccb cccc cccs ccee cche cchr cchs ccob ccoc ccrc ccre ccrs ccrt ccss ccst cctb cctc cctt cebs cec- cece ceco cecs cect ceeb ceec cees cehs ceor ceos cer- cerc cere cero cers cert cesc cese cesr cess cest cet- cete ceto cets chce chch chcs cheb chec chee cheh cher ches chet chhs choc choh choo chor chos chrb chrc chro chrr chrs chrt chsc chse chsh chsr chst chto chtr chtt cobb cobe cobh cobo cobs coce coch coco coct coes coho cohs coob cooh coos coot cor- corb corc core coro corr cors cort cosc cose cosh coso coss cost cotb cotc cote coth coto cots cott crbc crcc crce crcr cre- creb crec cree creh creo cres cret crhs crob croc croe croh croo cror crot crrt crss crst crtc crts cscb cscc csce csch csco cscr cscs csec csee cseh cser cset cshs csob csor csos csot csrc csrs csse cssr cstc csto cstr csts ctbs ctec cths ctor ctos ctot ctrc ctrs ctsc ctss ctts ebbc ebbo ebbr ebbs ebcc eber ebes ebhs eboe eboo ebor ebos ebro ecbc ecbe eccb eccc ecce ecco ecct eces eche echo echs echt eco- ecos ecot ecrc ecrr ecsc ecse ecss ect- ectc ecth ecto ects eecs eeee eees eehs eeoc eerc eero eers eese eetc eete eeth eets ehcc eheh eher ehhs ehre ehte eoes eore eost eotc eoto eots erbb erbe ercc erce erch ereb erec erer eres eret erhc erhs erob eroc eroe eroo eros errc erre erro errs erse ersh erso erst erth erts esbo esbs escb esce esch esco escr escs esee eseo eser eses eset eshs eso- esos esse essh esso esst estc este esth esto estr ests etbc etbr etcc etch etco