-er bbb bbc bbe bbf bbh bbo bbr bbs bcb bcc bce bcf bch bco bcr bcs be- beb bec bee bef beh beo ber bes bfb bfc bfe bff bfh bfo bfr bfs bhb bhc bhe bhf bhh bho bhr bhs bob boc boe bof boh boo bor bos brb bre brf brh bro brr brs bsb bsc bse bsf bsh bso bsr bss c-- cbb cbc cbe cbf cbh cbo cbr cbs ccb ccc cce ccf cch cco ccr ccs ce- ceb cec cee cef ceh ceo cer ces cfb cfc cfe cff cfh cfo cfr cfs ch- chb chc che chf chh cho chr chs co- cob coc coe cof coh coo cor cos crb crc cre crf crh cro crr crs csb csc cse csf csh cso csr css ebb ebc ebe ebf ebh ebo ebr ebs ec- ecb ecc ece ecf ech eco ecr ecs eeb eec eee eef eeo eer ees ef- efb efc efe eff efh efo efr efs ehb ehc ehe ehf ehh eho ehr ehs eo- eob eoc eoe eof eoh eoo eor eos erb erc ere erf erh ero err ers es- esb esc ese esf esh eso esr ess fbb fbc fbe fbf fbh fbo fbr fbs fcb fcc fce fcf fco fcr fcs feb fec fee fef feh feo fer fes ffc ffe fff ffh ffo ffr ffs fhb fhc fhe fhf fhh fho fhr fhs fob foc foe fof foh foo for fos frb frc fre frf frh fro frr frs fsb fsc fse fsf fsh fso fsr fss hbb hbc hbe hbf hbh hbo hbr hbs hcb hcc hce hcf hch hco hcr hcs he- heb hec hee hef heh heo her hes hfb hfc hfe hff hfh hfo hfr hfs hhb hhc hhe hhf hhh hho hhr hhs hob hoc hoe hof hoh hoo hor hos hr- hrb hrc hre hrf hrh hro hrr hrs hsb hsc hse hsf hsh hsr hss ob- obb obc obe obf obh obo obr obs oc- ocb occ ocf och oco ocr ocs oeb oec oee oef oeh oeo oer oes of- ofb ofc ofe off ofo ofr ofs ohc ohe ohf ohh oho ohr ohs oo- oob ooc oof ooh ooo oor oos or- orb orc ore orf orh oro orr ors os- osb osc ose osf osh oso osr oss rbb rbc rbe rbf rbh rbo rbr rbs rcb rcc rce rcf rch rco rcr rcs re- reb rec ree ref reh reo rer res rfb rfc rfe rff rfh rfo rfr rfs rh- rhb rhc rhe rhf rhh rho rhr rhs rob roc roe rof roh roo ror ros rrb rrc rrf rrh rrr rrs rsb rsc rse rsf rsh rso rsr rss sbb sbc sbe sbf sbh sbo sbr sbs scb scc sce scf sch sco scr scs se- seb sec see sef seh seo ser ses sfb sfc sfe sff sfh sfo sfr sfs sh- shb shc she shf shh sho shr shs sob soc soe sof soh soo sor sos sr- srb src sre srf srh sro srr srs ss- ssb ssc sse ssf ssh sso ssr sss

-ose bbbb bbbs bbch bbeb bbfc bbhs bbrc bcbc bcbs bccc bccs bcec bcer bces bcfc bche bchs bcof bcor bcos bcrs bcsc bcss bebb bebe bebo bech becs beeb beef beer bees befe beff befo behr behs beo- beof beor beos berc bere bero berr bers bes- bese besh beso bess bfcs bffs bfhs bfsr bhcc bher bhff bhhs bhor bhsf bobb bobe bobo bobs boce boch boco bocs boec boee boef boeo boer boes bofe boff bofh bofs boho bohr bohs boob booc booe boof booh boor boos bor- bore borf borh boro borr bors bosc bose bosh boso boss brcb brce breb brec bree bref breo brer bres brfc brhs brob broc broe broh broo bror bros brrr brrs brsb brsr bscs bseb bsec bsee bser bses bsfc bsff bsfs bshs bsos bssc bsse c-bo cbbc cbbs cbcc cbce cbcr cbcs cbec cbee cbef cber cbfb cbfc cbhs cbre cbrh cbsc cbse ccbc cccb cccc cccf cccs ccee ccfc ccff cche cchr cchs ccob ccoc ccrc ccre ccrf ccrs ccsf ccss cebs cec- cece ceco cecs ceeb ceec cees cef- cefc cehs ceor ceos cer- cerc cere cerf cero cers cesc cese cesr cess cfbc cfbr cfbs cfcb cfcf cfco cfcs cffb cffr cfhs cfor cfos cfrb cfre cfse chce chch chcs cheb chec chee chef cheh cher ches chfc chfr chfs chhs choc choh choo chor chos chrb chrc chrf chro chrr chrs chsc chse chsh chsr cobb cobe cobh cobo cobs coce coch coco coes cofc cofe coff cofs coho cohs coob coof cooh coos cor- corb corc core corf coro corr cors cosc cose cosh coso coss crbc crcc crce crcr cre- creb crec cree creh creo cres crfc crfs crhs crob croc croe croh croo cror crss csbf cscb cscc csce cscf csch csco cscr cscs csec csee cseh cser csfc csfr cshs csob csor csos csrc csrs csse cssr ebbc ebbo ebbr ebbs ebcc eber ebes ebfc ebhs eboe eboo ebor ebos ebro ecbc ecbe eccb eccc ecce ecco ecef eces ecfc ecfr ecfs eche echo echs eco- ecos ecrc ecrf ecrr ecsc ecse ecss eecs eeee eees eefe eehs eeoc eerc eero eers eese efbr efco efeo efes effs efhs efor efsh ehcc eheh eher ehhs ehre eoes eore erbb erbe ercc erce erch ereb erec erer eres erfc erfs erhc erhs erob eroc eroe eroo eros errc erre erro errs erse ersh erso esbo esbs escb esce esch esco escr escs esee eseo eser eses esfs eshs eso- esos esse essh esso fbhs fbrs fcbs fccf fcch fces fchs fcsc febo febs fece fech feeb feer fees fefc fefe feff fefo fehr feof feoh ferb ferc fere fero ferr fers fese fesh fess ffcc ffee ffff ffhs ffrr ffss fhfs fhhs fhrs fhss fobs foce foch foco focs foer foes fofo fohr fohs foof foos