-er -ey -ic bbb bbc bbe bbg bbi bbr bbs bby bcb bcc bce bcg bci bcr bcs bcy be- beb bec bee beg bei ber bes bey bgb bgc bge bgg bgi bgr bgs bi- bib bic bie big bii bir bis biy brb bre brg bri brr brs bry bsb bsc bse bsg bsi bsr bss bsy by- byc bye byg byi byr bys c-- cbb cbc cbe cbg cbi cbr cbs cby ccb ccc cce ccg cci ccr ccs ce- ceb cec cee ceg cei cer ces cey cgb cgc cge cgg cgi cgr cgs cgy ci- cib cic cie cig cii cir cis crb crc cre crg cri crr crs cry csb csc cse csg csi csr css csy cyb cyc cye cyg cyr cys ebb ebc ebe ebg ebi ebr ebs eby ec- ecb ecc ece ecg eci ecr ecs eeb eec eee eeg eer ees eey egb egc ege egg egi egr egs egy eib eic eie eig eii eir eis erb erc ere erg eri err ers ery es- esb esc ese esg esi esr ess esy eyc eye eyr eys gbc gbe gbg gbi gbr gbs gby gcb gcc gce gcg gci gcr gcs ge- geb gec gee geg gei ger ges gey ggb ggc ggg ggi ggr ggs gib gic gie gig gii gir gis giy grb grc gre grg gri grr grs gry gsb gsc gse gsg gsi gsr gss gy- gyb gye gyr gys ibb ibc ibe ibg ibi ibr ibs iby icb icc ice icg ici icr ics icy ie- iec iee ieg iei ier ies iey igb igc ige igg igi igr igs igy iib iic iie iii iir iis ir- irb irc ire irg iri irr irs iry is- isb isc ise isg isi isr iss isy iyc iye iyr iys iyy rbb rbc rbe rbg rbi rbr rbs rcb rcc rce rcg rci rcr rcs re- reb rec ree reg rei rer res rey rgb rgc rge rgg rgi rgr rgs rib ric rie rig rii rir ris riy rrb rrc rrg rri rrr rrs rsb rsc rse rsg rsi rsr rss ry- ryc rye ryg ryr rys ryy sbb sbc sbe sbg sbi sbr sbs sby scb scc sce scg sci scr scs se- seb sec see seg sei ser ses sey sgb sgc sge sgg sgi sgr sgs sib sic sie sig sii sir sis sr- srb src sre srg sri srr srs sry ss- ssb ssc sse ssg ssi ssr sss sy- syb syc sye syg syi syr sys ybc ybe ybg ybi ybr ybs yby ycc yce yci ycs ycy yeb yec yee yeg yei yer yes yey ygc yie yig yii yir yis yrc yre yrg yrs ysb ysc yse ysg ysi ysr yss ysy yyb yyc yye yyg yys yyy