-er -ey -ic bbb bbc bbe bbg bbi bbr bbt bby bcb bcc bce bcg bci bcr bct bcy be- beb bec bee beg bei ber bet bey bgb bgc bge bgg bgi bgr bgt bi- bib bic bie big bii bir bit biy brb bre brg bri brr brt bry btb btc bte btg bti btr btt bty by- byc bye byg byi byr byt c-- cbb cbc cbe cbg cbi cbr cbt cby ccb ccc cce ccg cci ccr cct ce- ceb cec cee ceg cei cer cet cey cgb cgc cge cgg cgi cgr cgt cgy ci- cib cic cie cig cii cir cit crb crc cre crg cri crr crt cry ctb ctc cte ctg cti ctr ctt cty cyb cyc cye cyg cyr cyt ebb ebc ebe ebg ebi ebr ebt eby ec- ecb ecc ece ecg eci ecr ect eeb eec eee eeg eer eet eey egb egc ege egg egi egr egt egy eib eic eie eig eii eir eit erb erc ere erg eri err ert ery etb etc ete etg eti etr ett ety eyc eye eyr eyt gbc gbe gbg gbi gbr gbt gby gcb gcc gce gcg gci gcr gct ge- geb gec gee geg gei ger get gey ggb ggc ggg ggi ggr ggt gib gic gie gig gii gir git giy grb grc gre grg gri grr grt gry gtb gtc gte gtg gti gtr gtt gty gy- gyb gye gyr ibb ibc ibe ibg ibi ibr ibt iby icb icc ice icg ici icr ict icy ie- iec iee ieg iei ier iet iey igb igc ige igg igi igr igt igy iib iic iie iii iir iit ir- irb irc ire irg iri irr irt iry itb itc ite itg iti itt ity iyc iye iyr iyt iyy rbb rbc rbe rbg rbi rbr rbt rcb rcc rce rcg rci rcr rct re- reb rec ree reg rei rer ret rey rgb rgc rge rgg rgi rgr rgt rib ric rie rig rii rir rit riy rrb rrc rrg rri rrr rrt rtb rtc rte rtg rti rtr rtt rty ry- ryc rye ryg ryr ryy tbb tbc tbe tbg tbi tbr tbt tcb tcc tce tcg tci tcr tct te- teb tec tee teg tei ter tet tey tgb tgc tge tgg tgi tgr tgt tgy tib tic tie tig tii tir tit tiy trb trc tre trg tri trr trt try ttb ttc tte ttg tti ttr ttt tty tyc tye tyg tyr tyt ybc ybe ybg ybi ybr yby ycc yce yci ycy yeb yec yee yeg yei yer yet yey ygc yie yig yii yir yit yrc yre yrg yrt ytc yte ytr ytt yyb yyc yye yyg yyt yyy