-er -ic -th bbb bbc bbe bbh bbi bbr bbt bcb bcc bce bch bci bcr bct be- beb bec bee beh bei ber bet bhb bhc bhe bhh bhi bhr bht bi- bib bic bie bih bii bir bit brb bre brh bri brr brt btb btc bte bth bti btr btt c-- cbb cbc cbe cbh cbi cbr cbt ccb ccc cce cch cci ccr cct ce- ceb cec cee ceh cei cer cet ch- chb chc che chh chi chr cht ci- cib cic cie cih cii cir cit crb crc cre crh cri crr crt ctb ctc cte cth cti ctr ctt ebb ebc ebe ebh ebi ebr ebt ec- ecb ecc ece ech eci ecr ect eeb eec eee eer eet ehb ehc ehe ehh ehi ehr eht eib eic eie eii eir eit erb erc ere erh eri err ert etb etc ete eth eti etr ett h-i hbb hbc hbe hbh hbi hbr hbt hcb hcc hce hch hci hcr hct he- heb hec hee heh hei her het hhb hhc hhe hhh hhi hhr hht hib hic hie hih hii hir hit hr- hrb hrc hre hrh hri hrr hrt htb htc hte hth hti htr htt ibb ibc ibe ibh ibi ibr ibt icb icc ice ich ici icr ict ie- iec iee iei ier iet ihb ihc ihe ihh ihi ihr iht iib iic iie iih iii iir iit ir- irb irc ire iri irr irt itb itc ite ith iti itt rbb rbc rbe rbh rbi rbr rbt rcb rcc rce rch rci rcr rct re- reb rec ree reh rei rer ret rh- rhb rhc rhe rhh rhi rhr rht rib ric rie rih rii rir rit rrb rrc rrh rri rrr rrt rtb rtc rte rti rtr rtt tbb tbc tbe tbh tbi tbr tbt tcb tcc tce tch tci tcr tct te- teb tec tee teh tei ter tet th- thb thc the thh thi thr tht tib tic tie tih tii tir tit trb trc tre trh tri trr trt ttb ttc tte tth tti ttr ttt