-er -ic -th bbb bbc bbe bbh bbi bbk bbr bbt bcb bcc bce bch bci bck bcr bct be- beb bec bee beh bei bek ber bet bhb bhc bhe bhh bhi bhk bhr bht bi- bib bic bie bih bii bik bir bit bkb bkc bke bkk bkr bkt brb bre brh bri brk brr brt btb btc bte bth bti btk btr btt c-- cbb cbc cbe cbh cbi cbk cbr cbt ccb ccc cce cch cci cck ccr cct ce- ceb cec cee ceh cei cek cer cet ch- chb chc che chh chi chk chr cht ci- cib cic cie cih cii cik cir cit ckb ckc ckh cki ckt crb crc cre crh cri crk crr crt ctb ctc cte cth cti ctk ctr ctt ebb ebc ebe ebh ebi ebk ebr ebt ec- ecb ecc ece ech eci eck ecr ect eeb eec eee eek eer eet ehb ehc ehe ehh ehi ehr eht eib eic eie eii eik eir eit ekb ekc eke ekh eki ekr ekt erb erc ere erh eri erk err ert etb etc ete eth eti etk etr ett h-i hbb hbc hbe hbh hbi hbk hbr hbt hcb hcc hce hch hci hck hcr hct he- heb hec hee heh hei hek her het hhb hhc hhe hhh hhi hhk hhr hht hib hic hie hih hii hik hir hit hkb hkh hki hkk hkr hkt hr- hrb hrc hre hrh hri hrk hrr hrt htb htc hte hth hti htk htr htt ibb ibc ibe ibh ibi ibk ibr ibt icb icc ice ich ici ick icr ict ie- iec iee iei iek ier iet ihb ihc ihe ihh ihi ihk ihr iht iib iic iie iih iii iir iit ikb ikc ike iki ikk ikr ikt ir- irb irc ire iri irk irr irt itb itc ite ith iti itk itt k-t kbb kbc kbe kbh kbi kbk kbr kcb kcc kce kch kci kck kcr kct ke- keb kec kee keh kei kek ker ket khe khh khi khk khr kib kic kie kih kii kik kir kit kkb kkc kke kkh kki kkk kkr kkt krc kri krk krr krt ktb ktc kte kth ktk ktr ktt rbb rbc rbe rbh rbi rbk rbr rbt rcb rcc rce rch rci rcr rct re- reb rec ree reh rei rek rer ret rh- rhb rhc rhe rhh rhi rhr rht rib ric rie rih rii rik rir rit rkb rkc rke rkk rkt rrb rrc rrh rri rrk rrr rrt rtb rtc rte rti rtk rtr rtt tbb tbc tbe tbh tbi tbk tbr tbt tcb tcc tce tch tci tck tcr tct te- teb tec tee teh tei tek ter tet th- thb thc the thh thi thk thr tht tib tic tie tih tii tik tir tit tkb tkc tke tkk tkr tkt trb trc tre trh tri trk trr trt ttb ttc tte tth tti ttk ttr ttt