-er -ey -ic bbb bbc bbe bbg bbi bbr bby bcb bcc bce bcg bci bcr bcy be- beb bec bee beg bei ber bey bgb bgc bge bgg bgi bgr bi- bib bic bie big bii bir biy brb bre brg bri brr bry by- byc bye byg byi byr c-- cbb cbc cbe cbg cbi cbr cby ccb ccc cce ccg cci ccr ce- ceb cec cee ceg cei cer cey cgb cgc cge cgg cgi cgr cgy ci- cib cic cie cig cii cir crb crc cre crg cri crr cry cyb cyc cye cyg cyr ebb ebc ebe ebg ebi ebr eby ec- ecb ecc ece ecg eci ecr eeb eec eee eeg eer eey egb egc ege egg egi egr egy eib eic eie eig eii eir erb erc ere erg eri err ery eyc eye eyr gbc gbe gbg gbi gbr gby gcb gcc gce gcg gci gcr ge- geb gec gee geg gei ger gey ggb ggc ggg ggi ggr gib gic gie gig gii gir giy grb grc gre grg gri grr gry gy- gyb gye gyr ibb ibc ibe ibg ibi ibr iby icb icc ice icg ici icr icy ie- iec iee ieg iei ier iey igb igc ige igg igi igr igy iib iic iie iii iir ir- irb irc ire irg iri irr iry iyc iye iyr iyy rbb rbc rbe rbg rbi rbr rcb rcc rce rcg rci rcr re- reb rec ree reg rei rer rey rgb rgc rge rgg rgi rgr rib ric rie rig rii rir riy rrb rrc rrg rri rrr ry- ryc rye ryg ryr ryy ybc ybe ybg ybi ybr yby ycc yce yci ycy yeb yec yee yeg yei yer yey ygc yie yig yii yir yrc yre yrg yyb yyc yye yyg yyy