-er -ic b-p bbb bbc bbd bbe bbg bbi bbn bbp bbr bbs bcb bcc bcd bce bcg bci bcn bcp bcr bcs bdb bdc bdd bde bdg bdi bdp bdr bds be- beb bec bed bee beg bei ben bep ber bes bgb bgc bgd bge bgg bgi bgn bgp bgr bgs bi- bib bic bid bie big bii bin bip bir bis bnb bnc bnd bne bng bni bnn bnp bnr bns bpb bpc bpd bpe bpg bpi bpn bpp bpr bps brb brd bre brg bri brn brp brr brs bsb bsc bsd bse bsg bsi bsn bsp bsr bss c-- cbb cbc cbd cbe cbg cbi cbn cbp cbr cbs ccb ccc ccd cce ccg cci ccn ccp ccr ccs cdb cdc cdd cde cdg cdi cdn cdp cdr cds ce- ceb cec ced cee ceg cei cen cep cer ces cgb cgc cgd cge cgg cgi cgn cgp cgr cgs ci- cib cic cid cie cig cii cin cip cir cis cn- cnb cnc cnd cne cng cni cnn cnp cnr cns cpb cpc cpd cpe cpg cpi cpn cpp cpr cps crb crc crd cre crg cri crn crp crr crs csb csc csd cse csg csi csn csp csr css dbb dbc dbd dbe dbg dbi dbn dbp dbr dbs dcb dcc dcd dce dcg dci dcn dcp dcr dcs ddb ddc ddd dde ddg ddi ddn ddp ddr dds de- deb dec ded dee deg dei den dep der des dgc dgd dge dgg dgi dgn dgp dgr dgs di- dib dic did die dig dii din dip dir dis dnb dnc dnd dne dng dni dnn dnp dnr dns dpb dpc dpd dpe dpg dpi dpn dpp dpr dps drb drc drd dre drg dri drn drp drr drs dsb dsc dsd dse dsg dsi dsn dsp dsr dss ebb ebc ebd ebe ebg ebi ebn ebp ebr ebs ec- ecb ecc ecd ece ecg eci ecn ecr ecs ed- edb edc edd ede edg edi edn edp edr eds eeb eec eed eee eeg een eep eer ees egb egc egd ege egg egi egn egp egr egs eib eic eid eie eig eii ein eip eir eis en- enb enc end ene eng eni enn enp enr ens ep- epb epc epd epe epg epi epn epp epr eps erb erc erd ere erg eri ern erp err ers es- esb esc esd ese esg esi esn esp esr ess g-d g-p gbc gbd gbe gbg gbi gbn gbp gbr gbs gcb gcc gcd gce gcg gci gcn gcp gcr gcs gdb gdc gdd gde gdi gdn gdp gdr gds ge- geb gec ged gee geg gei gen gep ger ges ggb ggc ggd ggg ggi ggn ggp ggr ggs gib gic gid gie gig gii gin gip gir gis gnb gnc gnd gne gni gnn gnp gnr gns gpb gpc gpd gpe gpg gpi gpn gpp gpr gps grb grc grd gre grg gri grn grp grr grs gsb gsc gsd gse gsg gsi gsn gsp gsr gss i-d ibb ibc ibd ibe ibg ibi ibn ibp ibr ibs icb icc icd ice icg ici icn icp icr ics idb idc idd ide idg idi idn idp idr ids ie- iec ied iee ieg iei ien iep ier ies igb igc igd ige igg igi ign igp igr igs iib iic iid iie iii iin iip iir iis in- inb inc ind ine ing ini inn inp inr ins ipb ipc ipd ipe ipg ipi ipn ipp ipr ips ir- irb irc ird ire irg iri irn irp irr irs is- isb isc isd ise isg isi isn isp isr iss n-i nbb nbc nbd nbe nbg nbi nbn nbp nbr nbs ncb ncc ncd nce ncg nci ncn ncp ncr ncs ndb ndc ndd nde ndg ndi ndn ndp ndr nds ne- neb nec ned nee neg nei nen nep ner nes ngb ngc ngd nge ngg ngi ngn ngp ngs nib nic nid nie nig nii nin nip nir nis nnb nnc nne nng nni nnn nnp nns npb npc npd npe npg npi npn npp npr nps nrb nrc nrd nre nrg nri nrn nrp nrr nrs nsb nsc nsd nse nsg nsi nsn nsp nsr nss p-p pbb pbc pbd pbe pbg pbi pbn pbp pbr pbs pcb pcc pcd pce pcg pci pcn pcp pcr pcs pdb pdc pdd pde pdg pdi pdn pdp pdr pds peb pec ped pee peg pei pen pep per pes pgb pgc pgd pge pgg pgi pgn pgp pgr pgs pib pic pid pie pig pii pin pip pir pis pn- pnb pnc pnd pne png pni pnn pnp pnr pns ppb ppc ppd ppe ppg ppi ppn ppp ppr pps prb prc prd pre prg pri prn prp prr prs ps- psb psc psd pse psg psi psn psp psr pss rbb rbc rbd rbe rbg rbi rbn rbp rbr rbs rcb rcc rcd rce rcg rci rcn rcp rcr rcs rdb rdc rdd rde rdg rdi rdn rdp rdr rds re- reb rec red ree reg rei ren rep rer res rgb rgc rgd rge rgg rgi rgn rgp rgr rgs rib ric rid rie rig rii rin rip rir ris rnb rnc rnd rng rni rnn rnp rnr rns rpb rpc rpd rpe rpg rpi rpn rpp rpr rps rrb rrc rrd rrg rri rrn rrp rrr rrs rsb rsc rsd rse rsg rsi rsn rsp rsr rss sbb sbc sbd sbe sbg sbi sbn sbp sbr sbs scb scc scd sce scg sci scn scp scr scs sdb sdc sdd sde sdg sdi sdn sdp sdr sds se- seb sec sed see seg sei sen sep ser ses sgb sgc sgd sge sgg sgi sgn sgp sgr sgs sib sic sid sie sig sii sin sip sir sis snb snc snd sne sng sni snn snp snr sns spb spc spd spe spg spi spn spp spr sps sr- srb src srd sre