-er b-p bbb bbd bbe bbi bbn bbo bbp bbr bbt bdb bdd bde bdi bdo bdp bdr bdt be- beb bed bee bei ben beo bep ber bet bi- bib bid bie bii bin bio bip bir bit bnb bnd bne bni bnn bno bnp bnr bnt bob bod boe boi bon boo bop bor bot bpb bpd bpe bpi bpn bpo bpp bpr bpt brb brd bre bri brn bro brp brr brt btb btd bte bti btn bto btp btr btt dbb dbd dbe dbi dbn dbo dbp dbr dbt ddb ddd dde ddi ddn ddo ddp ddr ddt de- deb ded dee dei den deo dep der det di- dib did die dii din dio dip dir dit dnb dnd dne dni dnn dno dnp dnr dnt dob dod doe doi don doo dop dor dot dpb dpd dpe dpi dpn dpo dpp dpr dpt drb drd dre dri drn dro drp drr drt dtb dtd dte dti dtn dto dtp dtr dtt ebb ebd ebe ebi ebn ebo ebp ebr ebt ed- edb edd ede edi edn edo edp edr edt eeb eed eee een eeo eep eer eet eib eid eie eii ein eio eip eir eit en- enb end ene eni enn eno enp enr ent eo- eob eod eoe eoi eon eoo eop eor eot ep- epb epd epe epi epn epo epp epr ept erb erd ere eri ern ero erp err ert etb etd ete eti etn eto etp etr ett i-d ibb ibd ibe ibi ibn ibo ibp ibr ibt idb idd ide idi idn ido idp idr idt ie- ied iee iei ien iep ier iet iib iid iie iii iin iio iip iir iit in- inb ind ine ini inn ino inp inr int io- iob iod ioe ioi ion ioo iop ior iot ipb ipd ipe ipi ipn ipo ipp ipr ipt ir- irb ird ire iri irn iro irp irr irt itb itd ite iti itn ito itp itt n-i nbb nbd nbe nbi nbn nbo nbp nbr nbt ndb ndd nde ndi ndn ndo ndp ndr ndt ne- neb ned nee nei nen neo nep ner net nib nid nie nii nin nio nip nir nit nnb nne nni nnn nno nnp nnt no- nob nod noe noi non noo nop nor not npb npd npe npi npn npo npp npr npt nrb nrd nre nri nrn nro nrp nrr nrt ntb ntd nte nti ntn nto ntp ntr ntt o-i ob- obb obd obe obi obn obo obp obr obt odb odd ode odi odn odo odp odr odt oeb oed oee oei oen oeo oep oer oet oib oid oie oii oin oio oip oir oit on- onb ond one oni onn ono onp onr ont oo- oob ood ooi oon ooo oop oor oot op- opb opd ope opi opn opo opp opr opt or- orb ord ore ori orn oro orp orr ort ot- otb otd ote oti otn oto otp otr ott p-p pbb pbd pbe pbi pbn pbo pbp pbr pbt pdb pdd pde pdi pdn pdo pdp pdr pdt peb ped pee pei pen peo pep per pet pib pid pie pii pin pio pip pir pit pn- pnb pnd pne pni pnn pno pnp pnr pnt pob pod poe poi pon poo pop por pot ppb ppd ppe ppi ppn ppo ppp ppr ppt prb prd pre pri prn pro prp prr prt pt- ptb ptd pte pti ptn pto ptp ptr ptt rbb rbd rbe rbi rbn rbo rbp rbr rbt rdb rdd rde rdi rdn rdo rdp rdr rdt re- reb red ree rei ren reo rep rer ret rib rid rie rii rin rio rip rir rit rnb rnd rni rnn rno rnp rnr rnt rob rod roe roi ron roo rop ror rot rpb rpd rpe rpi rpn rpo rpp rpr rpt rrb rrd rri rrn rrp rrr rrt rtb rtd rte rti rtn rto rtp rtr rtt tbb tbd tbe tbi tbn tbo tbp tbr tbt tdb tdd tde tdi tdn tdo tdp tdr tdt te- teb ted tee tei ten teo tep ter tet tib tid tie tii tin tio tip tir tit tnb tnd tne tni tnn tno tnp tnr tnt to- tob tod toe toi ton too top tor tot tpb tpd tpe tpi tpn tpo tpp tpr tpt trb trd tre tri trn tro trp trr trt ttb ttd tte tti ttn tto ttp ttr ttt