-er b-p bbb bbd bbe bbi bbn bbp bbr bbs bbt bdb bdd bde bdi bdp bdr bds bdt be- beb bed bee bei ben bep ber bes bet bi- bib bid bie bii bin bip bir bis bit bnb bnd bne bni bnn bnp bnr bns bnt bpb bpd bpe bpi bpn bpp bpr bps bpt brb brd bre bri brn brp brr brs brt bsb bsd bse bsi bsn bsp bsr bss bst btb btd bte bti btn btp btr bts btt dbb dbd dbe dbi dbn dbp dbr dbs dbt ddb ddd dde ddi ddn ddp ddr dds ddt de- deb ded dee dei den dep der des det di- dib did die dii din dip dir dis dit dnb dnd dne dni dnn dnp dnr dns dnt dpb dpd dpe dpi dpn dpp dpr dps dpt drb drd dre dri drn drp drr drs drt dsb dsd dse dsi dsn dsp dsr dss dst dtb dtd dte dti dtn dtp dtr dts dtt ebb ebd ebe ebi ebn ebp ebr ebs ebt ed- edb edd ede edi edn edp edr eds edt eeb eed eee een eep eer ees eet eib eid eie eii ein eip eir eis eit en- enb end ene eni enn enp enr ens ent ep- epb epd epe epi epn epp epr eps ept erb erd ere eri ern erp err ers ert es- esb esd ese esi esn esp esr ess est etb etd ete eti etn etp etr ets ett i-d ibb ibd ibe ibi ibn ibp ibr ibs ibt idb idd ide idi idn idp idr ids idt ie- ied iee iei ien iep ier ies iet iib iid iie iii iin iip iir iis iit in- inb ind ine ini inn inp inr ins int ipb ipd ipe ipi ipn ipp ipr ips ipt ir- irb ird ire iri irn irp irr irs irt is- isb isd ise isi isn isp isr iss ist itb itd ite iti itn itp its itt n-i nbb nbd nbe nbi nbn nbp nbr nbs nbt ndb ndd nde ndi ndn ndp ndr nds ndt ne- neb ned nee nei nen nep ner nes net nib nid nie nii nin nip nir nis nit nnb nne nni nnn nnp nns nnt npb npd npe npi npn npp npr nps npt nrb nrd nre nri nrn nrp nrr nrs nrt nsb nsd nse nsi nsn nsp nsr nss nst ntb ntd nte nti ntn ntp ntr nts ntt p-p pbb pbd pbe pbi pbn pbp pbr pbs pbt pdb pdd pde pdi pdn pdp pdr pds pdt peb ped pee pei pen pep per pes pet pib pid pie pii pin pip pir pis pit pn- pnb pnd pne pni pnn pnp pnr pns pnt ppb ppd ppe ppi ppn ppp ppr pps ppt prb prd pre pri prn prp prr prs prt ps- psb psd pse psi psn psp psr pss pst pt- ptb ptd pte pti ptn ptp ptr pts ptt rbb rbd rbe rbi rbn rbp rbr rbs rbt rdb rdd rde rdi rdn rdp rdr rds rdt re- reb red ree rei ren rep rer res ret rib rid rie rii rin rip rir ris rit rnb rnd rni rnn rnp rnr rns rnt rpb rpd rpe rpi rpn rpp rpr rps rpt rrb rrd rri rrn rrp rrr rrs rrt rsb rsd rse rsi rsn rsp rsr rss rst rtb rtd rte rti rtn rtp rtr rts rtt sbb sbd sbe sbi sbn sbp sbr sbs sbt sdb sdd sde sdi sdn sdp sdr sds sdt se- seb sed see sei sen sep ser ses set sib sid sie sii sin sip sir sis sit snb snd sne sni snn snp snr sns snt spb spd spe spi spn spp spr sps spt sr- srb srd sre sri srn srp srr srs srt ss- ssb ssd sse ssi ssn ssp ssr sss sst stb std ste sti stn stp str sts stt tbb tbd tbe tbi tbn tbp tbr tbs tbt tdb tdd tde tdi tdn tdp tdr tds tdt te- teb ted tee tei ten tep ter tes tet tib tid tie tii tin tip tir tis tit tnb tnd tne tni tnn tnp tnr tns tnt tpb tpd tpe tpi tpn tpp tpr tps tpt trb trd tre tri trn trp trr trs trt tsb tsd tse tsi tsn tsp tsr tss tst ttb ttd tte tti ttn ttp ttr tts ttt