-er bbb bbe bbg bbh bbi bbk bbl bbr bbs be- beb bee beg beh bei bek bel ber bes bgb bge bgg bgh bgi bgk bgl bgr bgs bhb bhe bhg bhh bhi bhk bhl bhr bhs bi- bib bie big bih bii bik bil bir bis bkb bke bkg bkk bkl bkr bks blb ble blg blh bli blk bll blr bls brb bre brg brh bri brk brl brr brs bsb bse bsg bsh bsi bsk bsl bsr bss ebb ebe ebg ebh ebi ebk ebl ebr ebs eeb eee eeg eek eel eer ees egb ege egg egh egi egl egr egs ehb ehe ehg ehh ehi ehl ehr ehs eib eie eig eii eik eil eir eis ekb eke ekg ekh eki ekl ekr eks elb ele elg elh eli elk ell elr els erb ere erg erh eri erk erl err ers es- esb ese esg esh esi esk esl esr ess gbe gbg gbh gbi gbk gbl gbr gbs ge- geb gee geg geh gei gek gel ger ges ggb ggg ggh ggi ggr ggs ghb ghe ghg ghh ghi ghl ghr ghs gib gie gig gih gii gik gil gir gis gkb gkh gks glb gle glg glh gli glk gll glr gls grb gre grg grh gri grk grl grr grs gsb gse gsg gsi gsk gsl gsr gss h-i hbb hbe hbg hbh hbi hbk hbl hbr hbs he- heb hee heg heh hei hek hel her hes hgb hge hgg hgh hgi hgk hgl hgr hgs hhb hhe hhg hhh hhi hhk hhl hhr hhs hib hie hig hih hii hik hil hir his hkb hkg hkh hki hkk hkl hkr hks hlb hle hlg hlh hli hll hlr hls hr- hrb hre hrg hrh hri hrk hrl hrr hrs hsb hse hsg hsh hsi hsk hsl hsr hss ibb ibe ibg ibh ibi ibk ibl ibr ibs ie- iee ieg iei iek iel ier ies igb ige igg igh igi igk igl igr igs ihb ihe ihg ihh ihi ihk ihl ihr ihs iib iie iih iii iil iir iis ikb ike iki ikk ikl ikr iks il- ilb ile ilg ilh ili ilk ill ilr ils ir- irb ire irg iri irk irl irr irs is- isb ise isg ish isi isk isl isr iss kbb kbe kbh kbi kbk kbl kbr kbs ke- keb kee keg keh kei kek kel ker kes kgb kgh kgi kgl kgs khe khh khi khk khr khs kib kie kig kih kii kik kil kir kis kkb kke kkh kki kkk kkl kkr kks kl- klb klg klh kli klr kls krg kri krk krl krr krs ksb kse ksg ksh ksi ksk ksl ksr kss lbb lbe lbg lbh lbi lbk lbl lbr lbs leb lee leg leh lei lek lel ler les lgb lge lgg lgh lgi lgk lgl lgr lgs lhb lhh lhi lhk lhr lhs lib lie lig lih lii lik lil lir lis lkb lkg lkh lkl lkr lks llb lle llg lli llk lll llr lls lrb lrg lrh lri lrk lrr lrs lsb lse lsg lsh lsi lsk lsl lsr lss rbb rbe rbg rbh rbi rbk rbl rbr rbs re- reb ree reg reh rei rek rel rer res rgb rge rgg rgh rgi rgk rgr rgs rh- rhb rhe rhg rhh rhi rhl rhr rhs rib rie rig rih rii rik ril rir ris rkb rke rkg rkk rks rle rlg rlh rli rll rlr rls rrb rrg rrh rri rrk rrl rrr rrs rsb rse rsg rsh rsi rsk rsl rsr rss sbb sbe sbg sbh sbi sbk sbl sbr sbs se- seb see seg seh sei sek sel ser ses sgb sge sgg sgh sgi sgk sgl sgr sgs sh- shb she shg shh shi shk shl shr shs sib sie sig sih sii sik sil sir sis sk- skb ske skg skh ski skk skl skr sks slb sle slg slh sli slk sll slr sls sr- srb sre srg srh sri srk srl srr srs ss- ssb sse ssg ssh ssi ssk ssl ssr sss