-er -ey bbb bbc bbe bbg bbh bbr bbs bby bcb bcc bce bcg bch bcr bcs bcy be- beb bec bee beg beh ber bes bey bgb bgc bge bgg bgh bgr bgs bhb bhc bhe bhg bhh bhr bhs brb bre brg brh brr brs bry bsb bsc bse bsg bsh bsr bss bsy by- byc bye byg byh byr bys c-- cbb cbc cbe cbg cbh cbr cbs cby ccb ccc cce ccg cch ccr ccs ce- ceb cec cee ceg ceh cer ces cey cgb cgc cge cgg cgh cgr cgs cgy ch- chb chc che chg chh chr chs chy crb crc cre crg crh crr crs cry csb csc cse csg csh csr css csy cyb cyc cye cyg cyr cys ebb ebc ebe ebg ebh ebr ebs eby ec- ecb ecc ece ecg ech ecr ecs eeb eec eee eeg eer ees eey egb egc ege egg egh egr egs egy ehb ehc ehe ehg ehh ehr ehs erb erc ere erg erh err ers ery es- esb esc ese esg esh esr ess esy eyc eye eyr eys gbc gbe gbg gbh gbr gbs gby gcb gcc gce gcg gch gcr gcs ge- geb gec gee geg geh ger ges gey ggb ggc ggg ggh ggr ggs ghb ghc ghe ghg ghh ghr ghs grb grc gre grg grh grr grs gry gsb gsc gse gsg gsr gss gy- gyb gye gyr gys hbb hbc hbe hbg hbh hbr hbs hby hcb hcc hce hcg hch hcr hcs hcy he- heb hec hee heg heh her hes hey hgb hgc hge hgg hgh hgr hgs hgy hhb hhc hhe hhg hhh hhr hhs hhy hr- hrb hrc hre hrg hrh hrr hrs hsb hsc hse hsg hsh hsr hss hsy hy- hyb hyc hye hyg hyh hyr hys hyy rbb rbc rbe rbg rbh rbr rbs rcb rcc rce rcg rch rcr rcs re- reb rec ree reg reh rer res rey rgb rgc rge rgg rgh rgr rgs rh- rhb rhc rhe rhg rhh rhr rhs rrb rrc rrg rrh rrr rrs rsb rsc rse rsg rsh rsr rss ry- ryc rye ryg ryr rys ryy sbb sbc sbe sbg sbh sbr sbs sby scb scc sce scg sch scr scs se- seb sec see seg seh ser ses sey sgb sgc sge sgg sgh sgr sgs sh- shb shc she shg shh shr shs shy sr- srb src sre srg srh srr srs sry ss- ssb ssc sse ssg ssh ssr sss sy- syb syc sye syg syh syr sys ybc ybe ybg ybr ybs yby ycc yce ych ycs ycy yeb yec yee yeg yeh yer yes yey ygc yhc yhe yhs yrc yre yrg yrs ysb ysc yse ysg ysr yss ysy yyb yyc yye yyg yys yyy