-er -ic bbb bbc bbd bbe bbg bbi bbn bbr bbs bcb bcc bcd bce bcg bci bcn bcr bcs bdb bdc bdd bde bdg bdi bdr bds be- beb bec bed bee beg bei ben ber bes bgb bgc bgd bge bgg bgi bgn bgr bgs bi- bib bic bid bie big bii bin bir bis bnb bnc bnd bne bng bni bnn bnr bns brb brd bre brg bri brn brr brs bsb bsc bsd bse bsg bsi bsn bsr bss c-- cbb cbc cbd cbe cbg cbi cbn cbr cbs ccb ccc ccd cce ccg cci ccn ccr ccs cdb cdc cdd cde cdg cdi cdn cdr cds ce- ceb cec ced cee ceg cei cen cer ces cgb cgc cgd cge cgg cgi cgn cgr cgs ci- cib cic cid cie cig cii cin cir cis cn- cnb cnc cnd cne cng cni cnn cnr cns crb crc crd cre crg cri crn crr crs csb csc csd cse csg csi csn csr css dbb dbc dbd dbe dbg dbi dbn dbr dbs dcb dcc dcd dce dcg dci dcn dcr dcs ddb ddc ddd dde ddg ddi ddn ddr dds de- deb dec ded dee deg dei den der des dgc dgd dge dgg dgi dgn dgr dgs di- dib dic did die dig dii din dir dis dnb dnc dnd dne dng dni dnn dnr dns drb drc drd dre drg dri drn drr drs dsb dsc dsd dse dsg dsi dsn dsr dss ebb ebc ebd ebe ebg ebi ebn ebr ebs ec- ecb ecc ecd ece ecg eci ecn ecr ecs ed- edb edc edd ede edg edi edn edr eds eeb eec eed eee eeg een eer ees egb egc egd ege egg egi egn egr egs eib eic eid eie eig eii ein eir eis en- enb enc end ene eng eni enn enr ens erb erc erd ere erg eri ern err ers es- esb esc esd ese esg esi esn esr ess g-d gbc gbd gbe gbg gbi gbn gbr gbs gcb gcc gcd gce gcg gci gcn gcr gcs gdb gdc gdd gde gdi gdn gdr gds ge- geb gec ged gee geg gei gen ger ges ggb ggc ggd ggg ggi ggn ggr ggs gib gic gid gie gig gii gin gir gis gnb gnc gnd gne gni gnn gnr gns grb grc grd gre grg gri grn grr grs gsb gsc gsd gse gsg gsi gsn gsr gss i-d ibb ibc ibd ibe ibg ibi ibn ibr ibs icb icc icd ice icg ici icn icr ics idb idc idd ide idg idi idn idr ids ie- iec ied iee ieg iei ien ier ies igb igc igd ige igg igi ign igr igs iib iic iid iie iii iin iir iis in- inb inc ind ine ing ini inn inr ins ir- irb irc ird ire irg iri irn irr irs is- isb isc isd ise isg isi isn isr iss n-i nbb nbc nbd nbe nbg nbi nbn nbr nbs ncb ncc ncd nce ncg nci ncn ncr ncs ndb ndc ndd nde ndg ndi ndn ndr nds ne- neb nec ned nee neg nei nen ner nes ngb ngc ngd nge ngg ngi ngn ngs nib nic nid nie nig nii nin nir nis nnb nnc nne nng nni nnn nns nrb nrc nrd nre nrg nri nrn nrr nrs nsb nsc nsd nse nsg nsi nsn nsr nss rbb rbc rbd rbe rbg rbi rbn rbr rbs rcb rcc rcd rce rcg rci rcn rcr rcs rdb rdc rdd rde rdg rdi rdn rdr rds re- reb rec red ree reg rei ren rer res rgb rgc rgd rge rgg rgi rgn rgr rgs rib ric rid rie rig rii rin rir ris rnb rnc rnd rng rni rnn rnr rns rrb rrc rrd rrg rri rrn rrr rrs rsb rsc rsd rse rsg rsi rsn rsr rss sbb sbc sbd sbe sbg sbi sbn sbr sbs scb scc scd sce scg sci scn scr scs sdb sdc sdd sde sdg sdi sdn sdr sds se- seb sec sed see seg sei sen ser ses sgb sgc sgd sge sgg sgi sgn sgr sgs sib sic sid sie sig sii sin sir sis snb snc snd sne sng sni snn snr sns sr- srb src srd sre srg sri srn srr srs ss- ssb ssc ssd sse ssg ssi ssn ssr sss