-er -ic bbb bbc bbe bbg bbh bbi bbk bbl bbr bcb bcc bce bcg bch bci bck bcl bcr be- beb bec bee beg beh bei bek bel ber bgb bgc bge bgg bgh bgi bgk bgl bgr bhb bhc bhe bhg bhh bhi bhk bhl bhr bi- bib bic bie big bih bii bik bil bir bkb bkc bke bkg bkk bkl bkr blb blc ble blg blh bli blk bll blr brb bre brg brh bri brk brl brr c-- cbb cbc cbe cbg cbh cbi cbk cbl cbr ccb ccc cce ccg cch cci cck ccl ccr ce- ceb cec cee ceg ceh cei cek cel cer cgb cgc cge cgg cgh cgi cgl cgr ch- chb chc che chg chh chi chk chl chr ci- cib cic cie cig cih cii cik cil cir ckb ckc ckh cki cl- clb clc cle clg clh cli clk cll clr crb crc cre crg crh cri crk crl crr ebb ebc ebe ebg ebh ebi ebk ebl ebr ec- ecb ecc ece ecg ech eci eck ecl ecr eeb eec eee eeg eek eel eer egb egc ege egg egh egi egl egr ehb ehc ehe ehg ehh ehi ehl ehr eib eic eie eig eii eik eil eir ekb ekc eke ekg ekh eki ekl ekr elb elc ele elg elh eli elk ell elr erb erc ere erg erh eri erk erl err gbc gbe gbg gbh gbi gbk gbl gbr gcb gcc gce gcg gch gci gck gcl gcr ge- geb gec gee geg geh gei gek gel ger ggb ggc ggg ggh ggi ggr ghb ghc ghe ghg ghh ghi ghl ghr gib gic gie gig gih gii gik gil gir gkb gkh glb glc gle glg glh gli glk gll glr grb grc gre grg grh gri grk grl grr h-i hbb hbc hbe hbg hbh hbi hbk hbl hbr hcb hcc hce hcg hch hci hck hcl hcr he- heb hec hee heg heh hei hek hel her hgb hgc hge hgg hgh hgi hgk hgl hgr hhb hhc hhe hhg hhh hhi hhk hhl hhr hib hic hie hig hih hii hik hil hir hkb hkg hkh hki hkk hkl hkr hlb hlc hle hlg hlh hli hll hlr hr- hrb hrc hre hrg hrh hri hrk hrl hrr ibb ibc ibe ibg ibh ibi ibk ibl ibr icb icc ice icg ich ici ick icl icr ie- iec iee ieg iei iek iel ier igb igc ige igg igh igi igk igl igr ihb ihc ihe ihg ihh ihi ihk ihl ihr iib iic iie iih iii iil iir ikb ikc ike iki ikk ikl ikr il- ilb ilc ile ilg ilh ili ilk ill ilr ir- irb irc ire irg iri irk irl irr kbb kbc kbe kbh kbi kbk kbl kbr kcb kcc kce kcg kch kci kck kcl kcr ke- keb kec kee keg keh kei kek kel ker kgb kgc kgh kgi kgl khe khh khi khk khr kib kic kie kig kih kii kik kil kir kkb kkc kke kkh kki kkk kkl kkr kl- klb klc klg klh kli klr krc krg kri krk krl krr lbb lbc lbe lbg lbh lbi lbk lbl lbr lcb lcc lce lcg lch lci lck lcl lcr leb lec lee leg leh lei lek lel ler lgb lgc lge lgg lgh lgi lgk lgl lgr lhb lhc lhh lhi lhk lhr lib lic lie lig lih lii lik lil lir lkb lkg lkh lkl lkr llb llc lle llg lli llk lll llr lrb lrc lrg lrh lri lrk lrr rbb rbc rbe rbg rbh rbi rbk rbl rbr rcb rcc rce rcg rch rci rcl rcr re- reb rec ree reg reh rei rek rel rer rgb rgc rge rgg rgh rgi rgk rgr rh- rhb rhc rhe rhg rhh rhi rhl rhr rib ric rie rig rih rii rik ril rir rkb rkc rke rkg rkk rlc rle rlg rlh rli rll rlr rrb rrc rrg rrh rri rrk rrl rrr