-er b-p bbb bbe bbg bbh bbi bbn bbo bbp bbr bbs be- beb bee beg beh bei ben beo bep ber bes bgb bge bgg bgh bgi bgn bgo bgp bgr bgs bhb bhe bhg bhh bhi bho bhp bhr bhs bi- bib bie big bih bii bin bio bip bir bis bnb bne bng bni bnn bno bnp bnr bns bob boe bog boh boi bon boo bop bor bos bpb bpe bpg bph bpi bpn bpo bpp bpr bps brb bre brg brh bri brn bro brp brr brs bsb bse bsg bsh bsi bsn bso bsp bsr bss ebb ebe ebg ebh ebi ebn ebo ebp ebr ebs eeb eee eeg een eeo eep eer ees egb ege egg egh egi egn ego egp egr egs ehb ehe ehg ehh ehi ehn eho ehp ehr ehs eib eie eig eii ein eio eip eir eis en- enb ene eng enh eni enn eno enp enr ens eo- eob eoe eog eoh eoi eon eoo eop eor eos ep- epb epe epg eph epi epn epo epp epr eps erb ere erg erh eri ern ero erp err ers es- esb ese esg esh esi esn eso esp esr ess g-p gbe gbg gbh gbi gbn gbo gbp gbr gbs ge- geb gee geg geh gei gen geo gep ger ges ggb ggg ggh ggi ggn ggo ggp ggr ggs ghb ghe ghg ghh ghi ghn gho ghp ghr ghs gib gie gig gih gii gin gio gip gir gis gnb gne gni gnn gno gnp gnr gns gob goe gog goh goi gon goo gop gor gos gpb gpe gpg gph gpi gpn gpo gpp gpr gps grb gre grg grh gri grn gro grp grr grs gsb gse gsg gsi gsn gso gsp gsr gss h-i hbb hbe hbg hbh hbi hbn hbo hbp hbr hbs he- heb hee heg heh hei hen heo hep her hes hgb hge hgg hgh hgi hgn hgo hgp hgr hgs hhb hhe hhg hhh hhi hhn hho hhp hhr hhs hib hie hig hih hii hin hio hip hir his hnb hne hng hnh hnn hno hns hob hoe hog hoh hoi hon hoo hop hor hos hpb hpe hpg hph hpi hpn hpo hpp hpr hps hr- hrb hre hrg hrh hri hrn hro hrp hrr hrs hsb hse hsg hsh hsi hsn hsp hsr hss ibb ibe ibg ibh ibi ibn ibo ibp ibr ibs ie- iee ieg iei ien iep ier ies igb ige igg igh igi ign igo igp igr igs ihb ihe ihg ihh ihi ihn iho ihp ihr ihs iib iie iih iii iin iio iip iir iis in- inb ine ing inh ini inn ino inp inr ins io- iob ioe iog ioh ioi ion ioo iop ior ios ipb ipe ipg ipi ipn ipo ipp ipr ips ir- irb ire irg iri irn iro irp irr irs is- isb ise isg ish isi isn iso isp isr iss n-i nbb nbe nbg nbi nbn nbo nbp nbr nbs ne- neb nee neg neh nei nen neo nep ner nes ngb nge ngg ngh ngi ngn ngo ngp ngs nhb nhe nhg nhh nhi nhn nhp nhr nhs nib nie nig nih nii nin nio nip nir nis nnb nne nng nnh nni nnn nno nnp nns no- nob noe nog noh noi non noo nop nor nos npb npe npg nph npi npn npo npp npr nps nrb nre nrg nri nrn nro nrp nrr nrs nsb nse nsg nsh nsi nsn nso nsp nsr nss o-i ob- obb obe obg obh obi obn obo obp obr obs oeb oee oeg oeh oei oen oeo oep oer oes oge ogg ogh ogi ogn ogo ogp ogs ohe ohg ohh ohi ohn oho ohp ohr ohs oib oie oii oin oio oip oir ois on- onb one ong onh oni onn ono onp onr ons oo- oob oog ooh ooi oon ooo oop oor oos op- opb ope opg oph opi opn opo opp opr ops or- orb ore org orh ori orn oro orp orr ors os- osb ose osg osh osi osn oso osp osr oss p-p pbb pbe pbg pbi pbn pbo pbp pbr pbs peb pee peg peh pei pen peo pep per pes pgb pge pgg pgh pgi pgn pgo pgp pgr pgs phb phe phg phi phn pho php phr phs pib pie pig pih pii pin pio pip pir pis pn- pnb pne png pnh pni pnn pno pnp pnr pns pob poe pog poh poi pon poo pop por pos ppb ppe ppg pph ppi ppn ppo ppp ppr pps prb pre prg prh pri prn pro prp prr prs ps- psb pse psg psh psi psn pso psp psr pss rbb rbe rbg rbh rbi rbn rbo rbp rbr rbs re- reb ree reg reh rei ren reo rep rer res rgb rge rgg rgh rgi rgn rgo rgp rgr rgs rh- rhb rhe rhg rhh rhi rhn rho rhp rhr rhs rib rie rig rih rii rin rio rip rir ris rnb rng rnh rni rnn rno rnp rnr rns rob roe rog roh roi ron roo rop ror ros rpb rpe rpg rph rpi rpn rpo rpp rpr rps rrb rrg rrh rri rrn rrp rrr rrs rsb rse rsg rsh rsi rsn rso rsp rsr rss sbb sbe sbg sbh sbi sbn sbo sbp sbr sbs se- seb see seg seh sei sen seo sep ser ses sgb sge sgg sgh sgi sgn sgo sgp sgr sgs sh- shb she shg shh shi shn sho shp shr shs sib sie sig sih sii sin sio sip sir sis snb sne sng sni snn sno snp snr sns sob soe sog soh soi son soo sop sor sos spb spe spg sph spi spn spo spp spr sps sr- srb sre srg srh sri srn sro srp srr srs ss- ssb sse ssg ssh ssi ssn sso ssp ssr sss