-er -ic -th bbb bbc bbe bbg bbh bbi bbr bbt bcb bcc bce bcg bch bci bcr bct be- beb bec bee beg beh bei ber bet bgb bgc bge bgg bgh bgi bgr bgt bhb bhc bhe bhg bhh bhi bhr bht bi- bib bic bie big bih bii bir bit brb bre brg brh bri brr brt btb btc bte btg bth bti btr btt c-- cbb cbc cbe cbg cbh cbi cbr cbt ccb ccc cce ccg cch cci ccr cct ce- ceb cec cee ceg ceh cei cer cet cgb cgc cge cgg cgh cgi cgr cgt ch- chb chc che chg chh chi chr cht ci- cib cic cie cig cih cii cir cit crb crc cre crg crh cri crr crt ctb ctc cte ctg cth cti ctr ctt ebb ebc ebe ebg ebh ebi ebr ebt ec- ecb ecc ece ecg ech eci ecr ect eeb eec eee eeg eer eet egb egc ege egg egh egi egr egt ehb ehc ehe ehg ehh ehi ehr eht eib eic eie eig eii eir eit erb erc ere erg erh eri err ert etb etc ete etg eth eti etr ett gbc gbe gbg gbh gbi gbr gbt gcb gcc gce gcg gch gci gcr gct ge- geb gec gee geg geh gei ger get ggb ggc ggg ggh ggi ggr ggt ghb ghc ghe ghg ghh ghi ghr ght gib gic gie gig gih gii gir git grb grc gre grg grh gri grr grt gtb gtc gte gtg gth gti gtr gtt h-i hbb hbc hbe hbg hbh hbi hbr hbt hcb hcc hce hcg hch hci hcr hct he- heb hec hee heg heh hei her het hgb hgc hge hgg hgh hgi hgr hgt hhb hhc hhe hhg hhh hhi hhr hht hib hic hie hig hih hii hir hit hr- hrb hrc hre hrg hrh hri hrr hrt htb htc hte htg hth hti htr htt ibb ibc ibe ibg ibh ibi ibr ibt icb icc ice icg ich ici icr ict ie- iec iee ieg iei ier iet igb igc ige igg igh igi igr igt ihb ihc ihe ihg ihh ihi ihr iht iib iic iie iih iii iir iit ir- irb irc ire irg iri irr irt itb itc ite itg ith iti itt rbb rbc rbe rbg rbh rbi rbr rbt rcb rcc rce rcg rch rci rcr rct re- reb rec ree reg reh rei rer ret rgb rgc rge rgg rgh rgi rgr rgt rh- rhb rhc rhe rhg rhh rhi rhr rht rib ric rie rig rih rii rir rit rrb rrc rrg rrh rri rrr rrt rtb rtc rte rtg rti rtr rtt tbb tbc tbe tbg tbh tbi tbr tbt tcb tcc tce tcg tch tci tcr tct te- teb tec tee teg teh tei ter tet tgb tgc tge tgg tgh tgi tgr tgt th- thb thc the thg thh thi thr tht tib tic tie tig tih tii tir tit trb trc tre trg trh tri trr trt ttb ttc tte ttg tth tti ttr ttt