-er b-p bbb bbd bbe bbi bbn bbo bbp bbr bbs bbt bbx bdb bdd bde bdi bdo bdp bdr bds bdt bdx be- beb bed bee bei ben beo bep ber bes bet bex bi- bib bid bie bii bin bio bip bir bis bit bix bnb bnd bne bni bnn bno bnp bnr bns bnt bnx bob bod boe boi bon boo bop bor bos bot box bpb bpd bpe bpi bpn bpo bpp bpr bps bpt bpx brb brd bre bri brn bro brp brr brs brt brx bsb bsd bse bsi bsn bso bsp bsr bss bst bsx btb btd bte bti btn bto btp btr bts btt btx bxb bxd bxi bxn bxo bxx dbb dbd dbe dbi dbn dbo dbp dbr dbs dbt dbx ddb ddd dde ddi ddn ddo ddp ddr dds ddt ddx de- deb ded dee dei den deo dep der des det dex di- dib did die dii din dio dip dir dis dit dix dnb dnd dne dni dnn dno dnp dnr dns dnt dob dod doe doi don doo dop dor dos dot dox dpb dpd dpe dpi dpn dpo dpp dpr dps dpt drb drd dre dri drn dro drp drr drs drt drx dsb dsd dse dsi dsn dso dsp dsr dss dst dsx dtb dtd dte dti dtn dto dtp dtr dts dtt dtx dxd dxi dxn dxo dxp dxr dxs dxt dxx ebb ebd ebe ebi ebn ebo ebp ebr ebs ebt ebx ed- edb edd ede edi edn edo edp edr eds edt edx eeb eed eee een eeo eep eer ees eet eex eib eid eie eii ein eio eip eir eis eit eix en- enb end ene eni enn eno enp enr ens ent eo- eob eod eoe eoi eon eoo eop eor eos eot ep- epb epd epe epi epn epo epp epr eps ept epx erb erd ere eri ern ero erp err ers ert es- esb esd ese esi esn eso esp esr ess est esx etb etd ete eti etn eto etp etr ets ett etx ex- exd exe exi exo exp exr exs ext exx i-d ibb ibd ibe ibi ibn ibo ibp ibr ibs ibt ibx idb idd ide idi idn ido idp idr ids idt idx ie- ied iee iei ien iep ier ies iet iex iib iid iie iii iin iio iip iir iis iit iix in- inb ind ine ini inn ino inp inr ins int inx io- iob iod ioe ioi ion ioo iop ior ios iot ipb ipd ipe ipi ipn ipo ipp ipr ips ipt ipx ir- irb ird ire iri irn iro irp irr irs irt irx is- isb isd ise isi isn iso isp isr iss ist itb itd ite iti itn ito itp its itt itx ixe ixi ixn n-i nbb nbd nbe nbi nbn nbo nbp nbr nbs nbt nbx ndb ndd nde ndi ndn ndo ndp ndr nds ndt ne- neb ned nee nei nen neo nep ner nes net nex nib nid nie nii nin nio nip nir nis nit nix nnb nne nni nnn nno nnp nns nnt no- nob nod noe noi non noo nop nor nos not nox npb npd npe npi npn npo npp npr nps npt nrb nrd nre nri nrn nro nrp nrr nrs nrt nrx nsb nsd nse nsi nsn nso nsp nsr nss nst nsx ntb ntd nte nti ntn nto ntp ntr nts ntt ntx nxd nxt o-i ob- obb obd obe obi obn obo obp obr obs obt obx odb odd ode odi odn odo odp odr ods odt oeb oed oee oei oen oeo oep oer oes oet oex oib oid oie oii oin oio oip oir ois oit on- onb ond one oni onn ono onp onr ons ont onx oo- oob ood ooi oon ooo oop oor oos oot oox op- opb opd ope opi opn opo opp opr ops opt opx or- orb ord ore ori orn oro orp orr ors ort orx os- osb osd ose osi osn oso osp osr oss ost osx ot- otb otd ote oti otn oto otp otr ots ott ox- oxb oxi oxn oxo oxt oxx p-p pbb pbd pbe pbi pbn pbo pbp pbr pbs pbt pbx pdb pdd pde pdi pdn pdo pdp pdr pds pdt pdx peb ped pee pei pen peo pep per pes pet pex pib pid pie pii pin pio pip pir pis pit pix pn- pnb pnd pne pni pnn pno pnp pnr pns pnt pnx pob pod poe poi pon poo pop por pos pot pox ppb ppd ppe ppi ppn ppo ppp ppr pps ppt ppx prb prd pre pri prn pro prp prr prs prt prx ps- psb psd pse psi psn pso psp psr pss pst psx pt- ptb ptd pte pti ptn pto ptp ptr pts ptt ptx pxe pxr pxs pxt rbb rbd rbe rbi rbn rbo rbp rbr rbs rbt rbx rdb rdd rde rdi rdn rdo rdp rdr rds rdt rdx re- reb red ree rei ren reo rep rer res ret rex rib rid rie rii rin rio rip rir ris rit rix rnb rnd rni rnn rno rnp rnr rns rnt rob rod roe roi ron roo rop ror ros rot rox rpb rpd rpe rpi rpn rpo rpp rpr rps rpt rpx rrb rrd rri rrn rrp rrr rrs rrt rsb rsd rse rsi rsn rso rsp rsr rss rst rsx rtb rtd rte rti rtn rto rtp rtr rts rtt rtx rxp rxr rxs sbb sbd sbe sbi sbn sbo sbp sbr sbs sbt sbx sdb sdd sde sdi sdn sdo sdp sdr sds sdt se- seb sed see sei sen seo sep ser ses set sex sib sid sie sii sin sio sip sir sis sit six snb snd sne sni snn sno snp snr sns snt sob sod soe soi son soo sop sor sos sot sox spb spd spe spi