-er -ic b-u bbb bbc bbd bbe bbi bbn bbr bbs bbu bcb bcc bcd bce bci bcn bcr bcs bcu bdb bdc bdd bde bdi bdr bds bdu be- beb bec bed bee bei ben ber bes beu bi- bib bic bid bie bii bin bir bis biu bnb bnc bnd bne bni bnn bnr bns bnu brb brd bre bri brn brr brs bru bsb bsc bsd bse bsi bsn bsr bss bsu bub buc bud bue bui bun bur bus buu c-- cbb cbc cbd cbe cbi cbn cbr cbs cbu ccb ccc ccd cce cci ccn ccr ccs ccu cdb cdc cdd cde cdi cdn cdr cds cdu ce- ceb cec ced cee cei cen cer ces ceu ci- cib cic cid cie cii cin cir cis ciu cn- cnb cnc cnd cne cni cnn cnr cns cnu crb crc crd cre cri crn crr crs cru csb csc csd cse csi csn csr css csu cub cuc cud cue cui cun cur cus cuu dbb dbc dbd dbe dbi dbn dbr dbs dbu dcb dcc dcd dce dci dcn dcr dcs dcu ddb ddc ddd dde ddi ddn ddr dds ddu de- deb dec ded dee dei den der des deu di- dib dic did die dii din dir dis diu dnb dnc dnd dne dni dnn dnr dns drb drc drd dre dri drn drr drs dru dsb dsc dsd dse dsi dsn dsr dss dsu dub duc dud due dui dun dur dus ebb ebc ebd ebe ebi ebn ebr ebs ebu ec- ecb ecc ecd ece eci ecn ecr ecs ecu ed- edb edc edd ede edi edn edr eds edu eeb eec eed eee een eer ees eib eic eid eie eii ein eir eis eiu en- enb enc end ene eni enn enr ens enu erb erc erd ere eri ern err ers eru es- esb esc esd ese esi esn esr ess esu eu- eub euc eud eue eui eun eur eus i-d ibb ibc ibd ibe ibi ibn ibr ibs ibu icb icc icd ice ici icn icr ics icu idb idc idd ide idi idn idr ids idu ie- iec ied iee iei ien ier ies iib iic iid iie iii iin iir iis iiu in- inb inc ind ine ini inn inr ins inu ir- irb irc ird ire iri irn irr irs iru is- isb isc isd ise isi isn isr iss isu iu- iub iuc iud iue iui iur ius n-i nbb nbc nbd nbe nbi nbn nbr nbs nbu ncb ncc ncd nce nci ncn ncr ncs ncu ndb ndc ndd nde ndi ndn ndr nds ndu ne- neb nec ned nee nei nen ner nes neu nib nic nid nie nii nin nir nis niu nnb nnc nne nni nnn nns nnu nrb nrc nrd nre nri nrn nrr nrs nru nsb nsc nsd nse nsi nsn nsr nss nsu nub nuc nud nue nui nun nur nus nuu rbb rbc rbd rbe rbi rbn rbr rbs rbu rcb rcc rcd rce rci rcn rcr rcs rcu rdb rdc rdd rde rdi rdn rdr rds rdu re- reb rec red ree rei ren rer res reu rib ric rid rie rii rin rir ris rnb rnc rnd rni rnn rnr rns rnu rrb rrc rrd rri rrn rrr rrs rru rsb rsc rsd rse rsi rsn rsr rss rsu rub ruc rud rue rui run rur rus ruu sbb sbc sbd sbe sbi sbn sbr sbs sbu scb scc scd sce sci scn scr scs scu sdb sdc sdd sde sdi sdn sdr sds sdu se- seb sec sed see sei sen ser ses seu sib sic sid sie sii sin sir sis siu snb snc snd sne sni snn snr sns snu sr- srb src srd sre sri srn srr srs ss- ssb ssc ssd sse ssi ssn ssr sss ssu sub suc sud sue sui sun sur sus suu ubb ubc ube ubi ubn ubr ubs ubu ucb ucc ucd uce uci ucn ucr ucs ucu udb udc udd ude udi udn udr uds udu ueb uec ued uee uei uen uer ues uib uic uid uie uii uin uir uis uiu un- unb unc und une uni unn unr uns unu ur- urb urc urd ure uri urn urr urs uru usb usc usd use usi usn usr uss usu uuc uue uun uur uus uuu