-er bbb bbc bbd bbe bbo bbr bbs bcb bcc bcd bce bco bcr bcs bdb bdc bdd bde bdo bdr bds be- beb bec bed bee beo ber bes bob boc bod boe boo bor bos brb brd bre bro brr brs bsb bsc bsd bse bso bsr bss c-- cbb cbc cbd cbe cbo cbr cbs ccb ccc ccd cce cco ccr ccs cdb cdc cdd cde cdo cdr cds ce- ceb cec ced cee ceo cer ces co- cob coc cod coe coo cor cos crb crc crd cre cro crr crs csb csc csd cse cso csr css dbb dbc dbd dbe dbo dbr dbs dcb dcc dcd dce dco dcr dcs ddb ddc ddd dde ddo ddr dds de- deb dec ded dee deo der des dob doc dod doe doo dor dos drb drc drd dre dro drr drs dsb dsc dsd dse dso dsr dss ebb ebc ebd ebe ebo ebr ebs ec- ecb ecc ecd ece eco ecr ecs ed- edb edc edd ede edo edr eds eeb eec eed eee eeo eer ees eo- eob eoc eod eoe eoo eor eos erb erc erd ere ero err ers es- esb esc esd ese eso esr ess ob- obb obc obd obe obo obr obs oc- ocb occ ocd oco ocr ocs odb odc odd ode odo odr ods oeb oec oed oee oeo oer oes oo- oob ooc ood ooo oor oos or- orb orc ord ore oro orr ors os- osb osc osd ose oso osr oss rbb rbc rbd rbe rbo rbr rbs rcb rcc rcd rce rco rcr rcs rdb rdc rdd rde rdo rdr rds re- reb rec red ree reo rer res rob roc rod roe roo ror ros rrb rrc rrd rrr rrs rsb rsc rsd rse rso rsr rss sbb sbc sbd sbe sbo sbr sbs scb scc scd sce sco scr scs sdb sdc sdd sde sdo sdr sds se- seb sec sed see seo ser ses sob soc sod soe soo sor sos sr- srb src srd sre sro srr srs ss- ssb ssc ssd sse sso ssr sss

-ose bbbb bbbs bbdd bbdo bbeb bbrc bcbc bcbs bccc bccs bcde bcds bcec bcer bces bcor bcos bcrs bcsc bcss bd-r bdbc bddc bdes bdos bdsd bebb bebe bebo becs bede bedo beds beeb beed beer bees beo- beod beor beos berc berd bere bero berr bers bes- bese beso bess bobb bobe bobo bobs boce boco bocs bodb bode bodo bods boec boee boeo boer boes boob booc bood booe boor boos bor- bord bore boro borr bors bosc bose boso boss brcb brce brdo brds breb brec bred bree breo brer bres brob broc brod broe broo bror bros brrr brrs brsb brsr bsbd bscs bseb bsec bsed bsee bser bses bsod bsos bsrd bssc bssd bsse c-bo c-cd cbbc cbbs cbcc cbce cbcr cbcs cbdb cbdc cbdo cbds cbec cbee cber cbrd cbre cbsc cbse ccbc cccb cccc cccs ccdc ccdr ccds cced ccee ccob ccoc ccod ccrc ccre ccrs ccsd ccss cd-e cd-r cdcs cddb cddr cdec cder cdes cdos cdre cdrs cdss cebs cec- cece ceco cecs cedd cede cedo ceeb ceec cees ceor ceos cer- cerc cerd cere cero cers cesc cese cesr cess cobb cobe cobo cobs coce coco codd code cods coed coes coob cood coos cor- corb corc cord core coro corr cors cosc cose coso coss crbc crcc crce crcr crdc cre- creb crec cred cree creo cres crob croc crod croe croo cror crss cscb cscc cscd csce csco cscr cscs csdb csdr csec csee cser csob csor csos csrc csrd csrs cssd csse cssr d-bo dbcc dbcs dbos dbrs dbss dcbc dccb dccc dccs dcdb dcds dcos dcsc dcss dddd ddes ddoc ddrc ddre ddss debe debs dec- decc decd dece deco decs dedd dede dedo deeb deed deer dees deor deos der- derb derc dere dero derr ders des- desc dese deso dess dobb dobe dobs doce doco docs dod- dodd dode dodo dods doer does doob dood door doos dorc dord dore doro dorr dors dose doso doss drbc dred dree dres drob drod drrs dsbc dscc dscr dscs dsdr dsos dsrc dsrr dssc ebbc ebbo ebbr ebbs ebcc ebed eber ebes eboe eboo ebor ebos ebro ecbc ecbe eccb eccc ecce ecco ecdc eced eces eco- ecod ecos ecrc ecrr ecsc ecse ecss eddc edde eddo edds ede- eder edes edoc edod edos edss eecs eede eeee eees eeoc eerc eero eers eese eocd eode eoes eore erbb erbe ercc erce erde erds ereb erec ered erer eres erob eroc erod eroe eroo eros errc erre erro errs erse erso esbo esbs escb esce esco escr escs esds esee eseo eser eses eso- esos esrd esse esso o-eo obbo obec obed ober obes oboe obor obos obre obro obsd obsr obss ocbc occc ocds oce oced ocee ocos ocre ocro ocrr ocrs odbo oddd odds oded odeo oder odes odoo odor odos odso oec- oecc oedo oeds oeec oere oers oese oobe oocr ooer ooes oooo ooos oord oore oose orbb orbe orbo orbs orce orco orcs orde ordo ords ore- oreb orec ored oreo orer ores oro- oroe oror oros orro orrs orse orso osbe oscc osce osco osec osed osee oser oses osoo osor osos osrd osro ossb ossd osse osso rbbb rbbr rbbs rbds rbsd rbss rcbc rcbo rccb rccc rccs rcdc rcde rcds rcos rcrd rcsc rcsd rcss rder rdoc rdos rdso rebb rebe rebo rebs recc recd rece recr recs redc redd rede redo redr reds reeb reed rees reod reos rerd rere rero rers rese reso ress rob- robb robe robo robs rocc roce roco rocs rodd rode rodo rods roed roer roes roob rood roor roos rorc rore roro rosc rose roso ross rred rrrr rscc rscs rsdd rsds rsee rsos rsre s-os sbbs sbcc sbcs sbds sber sbor sbsd sbse sccc scce sccs scdc scds scec scee scer scob