-er -ic bbb bbc bbe bbh bbi bbk bbl bbr bcb bcc bce bch bci bck bcl bcr be- beb bec bee beh bei bek bel ber bhb bhc bhe bhh bhi bhk bhl bhr bi- bib bic bie bih bii bik bil bir bkb bkc bke bkk bkl bkr blb blc ble blh bli blk bll blr brb bre brh bri brk brl brr c-- cbb cbc cbe cbh cbi cbk cbl cbr ccb ccc cce cch cci cck ccl ccr ce- ceb cec cee ceh cei cek cel cer ch- chb chc che chh chi chk chl chr ci- cib cic cie cih cii cik cil cir ckb ckc ckh cki cl- clb clc cle clh cli clk cll clr crb crc cre crh cri crk crl crr ebb ebc ebe ebh ebi ebk ebl ebr ec- ecb ecc ece ech eci eck ecl ecr eeb eec eee eek eel eer ehb ehc ehe ehh ehi ehl ehr eib eic eie eii eik eil eir ekb ekc eke ekh eki ekl ekr elb elc ele elh eli elk ell elr erb erc ere erh eri erk erl err h-i hbb hbc hbe hbh hbi hbk hbl hbr hcb hcc hce hch hci hck hcl hcr he- heb hec hee heh hei hek hel her hhb hhc hhe hhh hhi hhk hhl hhr hib hic hie hih hii hik hil hir hkb hkh hki hkk hkl hkr hlb hlc hle hlh hli hll hlr hr- hrb hrc hre hrh hri hrk hrl hrr ibb ibc ibe ibh ibi ibk ibl ibr icb icc ice ich ici ick icl icr ie- iec iee iei iek iel ier ihb ihc ihe ihh ihi ihk ihl ihr iib iic iie iih iii iil iir ikb ikc ike iki ikk ikl ikr il- ilb ilc ile ilh ili ilk ill ilr ir- irb irc ire iri irk irl irr kbb kbc kbe kbh kbi kbk kbl kbr kcb kcc kce kch kci kck kcl kcr ke- keb kec kee keh kei kek kel ker khe khh khi khk khr kib kic kie kih kii kik kil kir kkb kkc kke kkh kki kkk kkl kkr kl- klb klc klh kli klr krc kri krk krl krr lbb lbc lbe lbh lbi lbk lbl lbr lcb lcc lce lch lci lck lcl lcr leb lec lee leh lei lek lel ler lhb lhc lhh lhi lhk lhr lib lic lie lih lii lik lil lir lkb lkh lkl lkr llb llc lle lli llk lll llr lrb lrc lrh lri lrk lrr rbb rbc rbe rbh rbi rbk rbl rbr rcb rcc rce rch rci rcl rcr re- reb rec ree reh rei rek rel rer rh- rhb rhc rhe rhh rhi rhl rhr rib ric rie rih rii rik ril rir rkb rkc rke rkk rlc rle rlh rli rll rlr rrb rrc rrh rri rrk rrl rrr