-er bbb bbc bbe bbh bbk bbo bbr bbs bcb bcc bce bch bck bco bcr bcs be- beb bec bee beh bek beo ber bes bhb bhc bhe bhh bhk bho bhr bhs bkb bkc bke bkk bko bkr bks bob boc boe boh bok boo bor bos brb bre brh brk bro brr brs bsb bsc bse bsh bsk bso bsr bss c-- cbb cbc cbe cbh cbk cbo cbr cbs ccb ccc cce cch cck cco ccr ccs ce- ceb cec cee ceh cek ceo cer ces ch- chb chc che chh chk cho chr chs ckb ckc ckh cko cks co- cob coc coe coh cok coo cor cos crb crc cre crh crk cro crr crs csb csc cse csh csk cso csr css ebb ebc ebe ebh ebk ebo ebr ebs ec- ecb ecc ece ech eck eco ecr ecs eeb eec eee eek eeo eer ees ehb ehc ehe ehh eho ehr ehs ekb ekc eke ekh eko ekr eks eo- eob eoc eoe eoh eok eoo eor eos erb erc ere erh erk ero err ers es- esb esc ese esh esk eso esr ess hbb hbc hbe hbh hbk hbo hbr hbs hcb hcc hce hch hck hco hcr hcs he- heb hec hee heh hek heo her hes hhb hhc hhe hhh hhk hho hhr hhs hkb hkh hkk hko hkr hks hob hoc hoe hoh hok hoo hor hos hr- hrb hrc hre hrh hrk hro hrr hrs hsb hsc hse hsh hsk hsr hss kbb kbc kbe kbh kbk kbo kbr kbs kcb kcc kce kch kck kcr kcs ke- keb kec kee keh kek keo ker kes khe khh khk kho khr khs kkb kkc kke kkh kkk kkr kks kob koc koe koh kok koo kor kos krc krk kro krr krs ksb ksc kse ksh ksk kso ksr kss ob- obb obc obe obh obk obo obr obs oc- ocb occ och ock oco ocr ocs oeb oec oee oeh oeo oer oes ohc ohe ohh oho ohr ohs okb okc oke okk oko okr oks oo- oob ooc ooh ook ooo oor oos or- orb orc ore orh ork oro orr ors os- osb osc ose osh osk oso osr oss rbb rbc rbe rbh rbk rbo rbr rbs rcb rcc rce rch rco rcr rcs re- reb rec ree reh rek reo rer res rh- rhb rhc rhe rhh rho rhr rhs rkb rkc rke rkk rko rks rob roc roe roh rok roo ror ros rrb rrc rrh rrk rrr rrs rsb rsc rse rsh rsk rso rsr rss sbb sbc sbe sbh sbk sbo sbr sbs scb scc sce sch sck sco scr scs se- seb sec see seh sek seo ser ses sh- shb shc she shh shk sho shr shs sk- skb skc ske skh skk sko skr sks sob soc soe soh sok soo sor sos sr- srb src sre srh srk sro srr srs ss- ssb ssc sse ssh ssk sso ssr sss

-ose bbbb bbbs bbch bbeb bbhs bbrc bcbc bcbs bccc bccs bcec bcer bces bche bchs bcor bcos bcrs bcsc bcss bebb bebe bebo bech beck becs beeb beek beer bees behr behs beke beko beks beo- beok beor beos berc bere berk bero berr bers bes- bese besh besk beso bess bhcc bher bhhs bhor bkhs bobb bobe bobo bobs boce boch bock boco bocs boec boee boeo boer boes boho bohr bohs boke boko boks boob booc booe booh book boor boos bor- bore borh bork boro borr bors bosc bose bosh bosk boso boss brcb brce breb brec bree brek breo brer bres brhs brkb brob broc broe broh brok broo bror bros brrr brrs brsb brsr bscs bseb bsec bsee bser bses bshs bsos bssc bsse c-bo cbbc cbbs cbcc cbce cbcr cbcs cbec cbee cber cbhs cbko cbkr cbre cbrh cbsc cbse ccbc cccb cccc cccs ccee cche cchr cchs ccob ccoc ccrc ccre ccrs ccss cebs cec- cece ceco cecs ceeb ceec cees cehs ceke ceor ceos cer- cerc cere cero cers cesc cese cesr cess chce chch chcs cheb chec chee cheh chek cher ches chhs chkb chks choc choh chok choo chor chos chrb chrc chro chrr chrs chsc chse chsh chsr ckbc ckbe ckch ckck ckco ckcs cker ckhs ckob ckoc ckoo ckor ckos ckrc cksb cksh ckso cobb cobe cobh cobo cobs coce coch cock coco coes coho cohs cok- coke coko coob cooh cook coos cor- corb corc core cork coro corr cors cosc cose cosh coso coss crbc crcc crce crcr cre- creb crec cree creh creo cres crhs crkc crob croc croe croh crok croo cror crss cscb cscc csce csch csco cscr cscs csec csee cseh cser cshs csks csob csor csos csrc csrs csse cssr ebbc ebbo ebbr ebbs ebcc eber ebes ebhs eboe eboo ebor ebos ebro ecbc ecbe eccb eccc ecce ecco eces eche echo echs ecko ecks eco- ecos ecrc ecrr ecsc ecse ecss eecs eeee eees eehs eeke eeks eeoc eerc eero eers eese eesk ehcc eheh eher ehhs ehre ekch ekco ekeb ekek eker ekes ekho ekhs ekos eoes eore erbb erbe ercc erce erch ereb erec erer eres erhc erhs erke erks erob eroc eroe eroo eros errc erre erro errs erse ersh erso esbo esbs escb esce esch esco escr escs esee esek eseo eser eses eshs eske esko esks eso- esok esos esse essh esso hbbs hbes hbhs hboc hbos hbrs hbss hcbc hcbs hccb hccc hcch hccs hchs hcsc hcso hcss hebb hebe hebo hebr hech heck hecs heeb heek heer hees hehe heho hehs heke heor herb herc here herk hero herr hers hesc hesh hess hhhh hhhs hkcc hkcs hkse hobe hobo hobs hoce hoch hock hocr hocs hoek hoer hoes hohe hoho hoke hoko hoks hooe hook hoor hoos horc hore hork horo horr hors hose hosh hoss hree hrhs hrob hros hrrc hrso hsbc hscc hses