-er bbb bbe bbg bbh bbn bbo bbr bbs be- beb bee beg beh ben beo ber bes bgb bge bgg bgh bgn bgo bgr bgs bhb bhe bhg bhh bho bhr bhs bnb bne bng bnn bno bnr bns bob boe bog boh bon boo bor bos brb bre brg brh brn bro brr brs bsb bse bsg bsh bsn bso bsr bss ebb ebe ebg ebh ebn ebo ebr ebs eeb eee eeg een eeo eer ees egb ege egg egh egn ego egr egs ehb ehe ehg ehh ehn eho ehr ehs en- enb ene eng enh enn eno enr ens eo- eob eoe eog eoh eon eoo eor eos erb ere erg erh ern ero err ers es- esb ese esg esh esn eso esr ess gbe gbg gbh gbn gbo gbr gbs ge- geb gee geg geh gen geo ger ges ggb ggg ggh ggn ggo ggr ggs ghb ghe ghg ghh ghn gho ghr ghs gnb gne gnn gno gnr gns gob goe gog goh gon goo gor gos grb gre grg grh grn gro grr grs gsb gse gsg gsn gso gsr gss hbb hbe hbg hbh hbn hbo hbr hbs he- heb hee heg heh hen heo her hes hgb hge hgg hgh hgn hgo hgr hgs hhb hhe hhg hhh hhn hho hhr hhs hnb hne hng hnh hnn hno hns hob hoe hog hoh hon hoo hor hos hr- hrb hre hrg hrh hrn hro hrr hrs hsb hse hsg hsh hsn hsr hss nbb nbe nbg nbn nbo nbr nbs ne- neb nee neg neh nen neo ner nes ngb nge ngg ngh ngn ngo ngs nhb nhe nhg nhh nhn nhr nhs nnb nne nng nnh nnn nno nns no- nob noe nog noh non noo nor nos nrb nre nrg nrn nro nrr nrs nsb nse nsg nsh nsn nso nsr nss ob- obb obe obg obh obn obo obr obs oeb oee oeg oeh oen oeo oer oes oge ogg ogh ogn ogo ogs ohe ohg ohh ohn oho ohr ohs on- onb one ong onh onn ono onr ons oo- oob oog ooh oon ooo oor oos or- orb ore org orh orn oro orr ors os- osb ose osg osh osn oso osr oss rbb rbe rbg rbh rbn rbo rbr rbs re- reb ree reg reh ren reo rer res rgb rge rgg rgh rgn rgo rgr rgs rh- rhb rhe rhg rhh rhn rho rhr rhs rnb rng rnh rnn rno rnr rns rob roe rog roh ron roo ror ros rrb rrg rrh rrn rrr rrs rsb rse rsg rsh rsn rso rsr rss sbb sbe sbg sbh sbn sbo sbr sbs se- seb see seg seh sen seo ser ses sgb sge sgg sgh sgn sgo sgr sgs sh- shb she shg shh shn sho shr shs snb sne sng snn sno snr sns sob soe sog soh son soo sor sos sr- srb sre srg srh srn sro srr srs ss- ssb sse ssg ssh ssn sso ssr sss