-er b-p bbb bbe bbh bbi bbn bbo bbp bbr be- beb bee beh bei ben beo bep ber bhb bhe bhh bhi bho bhp bhr bi- bib bie bih bii bin bio bip bir bnb bne bni bnn bno bnp bnr bob boe boh boi bon boo bop bor bpb bpe bph bpi bpn bpo bpp bpr brb bre brh bri brn bro brp brr ebb ebe ebh ebi ebn ebo ebp ebr eeb eee een eeo eep eer ehb ehe ehh ehi ehn eho ehp ehr eib eie eii ein eio eip eir en- enb ene enh eni enn eno enp enr eo- eob eoe eoh eoi eon eoo eop eor ep- epb epe eph epi epn epo epp epr erb ere erh eri ern ero erp err h-i hbb hbe hbh hbi hbn hbo hbp hbr he- heb hee heh hei hen heo hep her hhb hhe hhh hhi hhn hho hhp hhr hib hie hih hii hin hio hip hir hnb hne hnh hnn hno hob hoe hoh hoi hon hoo hop hor hpb hpe hph hpi hpn hpo hpp hpr hr- hrb hre hrh hri hrn hro hrp hrr ibb ibe ibh ibi ibn ibo ibp ibr ie- iee iei ien iep ier ihb ihe ihh ihi ihn iho ihp ihr iib iie iih iii iin iio iip iir in- inb ine inh ini inn ino inp inr io- iob ioe ioh ioi ion ioo iop ior ipb ipe ipi ipn ipo ipp ipr ir- irb ire iri irn iro irp irr n-i nbb nbe nbi nbn nbo nbp nbr ne- neb nee neh nei nen neo nep ner nhb nhe nhh nhi nhn nhp nhr nib nie nih nii nin nio nip nir nnb nne nnh nni nnn nno nnp no- nob noe noh noi non noo nop nor npb npe nph npi npn npo npp npr nrb nre nri nrn nro nrp nrr o-i ob- obb obe obh obi obn obo obp obr oeb oee oeh oei oen oeo oep oer ohe ohh ohi ohn oho ohp ohr oib oie oii oin oio oip oir on- onb one onh oni onn ono onp onr oo- oob ooh ooi oon ooo oop oor op- opb ope oph opi opn opo opp opr or- orb ore orh ori orn oro orp orr p-p pbb pbe pbi pbn pbo pbp pbr peb pee peh pei pen peo pep per phb phe phi phn pho php phr pib pie pih pii pin pio pip pir pn- pnb pne pnh pni pnn pno pnp pnr pob poe poh poi pon poo pop por ppb ppe pph ppi ppn ppo ppp ppr prb pre prh pri prn pro prp prr rbb rbe rbh rbi rbn rbo rbp rbr re- reb ree reh rei ren reo rep rer rh- rhb rhe rhh rhi rhn rho rhp rhr rib rie rih rii rin rio rip rir rnb rnh rni rnn rno rnp rnr rob roe roh roi ron roo rop ror rpb rpe rph rpi rpn rpo rpp rpr rrb rrh rri rrn rrp rrr