-er -ic b-u bbb bbc bbd bbe bbi bbn bbo bbr bbs bbu bcb bcc bcd bce bci bcn bco bcr bcs bcu bdb bdc bdd bde bdi bdo bdr bds bdu be- beb bec bed bee bei ben beo ber bes beu bi- bib bic bid bie bii bin bio bir bis biu bnb bnc bnd bne bni bnn bno bnr bns bnu bob boc bod boe boi bon boo bor bos bou brb brd bre bri brn bro brr brs bru bsb bsc bsd bse bsi bsn bso bsr bss bsu bub buc bud bue bui bun buo bur bus buu c-- cbb cbc cbd cbe cbi cbn cbo cbr cbs cbu ccb ccc ccd cce cci ccn cco ccr ccs ccu cdb cdc cdd cde cdi cdn cdo cdr cds cdu ce- ceb cec ced cee cei cen ceo cer ces ceu ci- cib cic cid cie cii cin cio cir cis ciu cn- cnb cnc cnd cne cni cnn cno cnr cns cnu co- cob coc cod coe coi con coo cor cos cou crb crc crd cre cri crn cro crr crs cru csb csc csd cse csi csn cso csr css csu cub cuc cud cue cui cun cuo cur cus cuu dbb dbc dbd dbe dbi dbn dbo dbr dbs dbu dcb dcc dcd dce dci dcn dco dcr dcs dcu ddb ddc ddd dde ddi ddn ddo ddr dds ddu de- deb dec ded dee dei den deo der des deu di- dib dic did die dii din dio dir dis diu dnb dnc dnd dne dni dnn dno dnr dns dob doc dod doe doi don doo dor dos dou drb drc drd dre dri drn dro drr drs dru dsb dsc dsd dse dsi dsn dso dsr dss dsu dub duc dud due dui dun duo dur dus ebb ebc ebd ebe ebi ebn ebo ebr ebs ebu ec- ecb ecc ecd ece eci ecn eco ecr ecs ecu ed- edb edc edd ede edi edn edo edr eds edu eeb eec eed eee een eeo eer ees eib eic eid eie eii ein eio eir eis eiu en- enb enc end ene eni enn eno enr ens enu eo- eob eoc eod eoe eoi eon eoo eor eos eou erb erc erd ere eri ern ero err ers eru es- esb esc esd ese esi esn eso esr ess esu eu- eub euc eud eue eui eun eur eus i-d ibb ibc ibd ibe ibi ibn ibo ibr ibs ibu icb icc icd ice ici icn ico icr ics icu idb idc idd ide idi idn ido idr ids idu ie- iec ied iee iei ien ier ies iib iic iid iie iii iin iio iir iis iiu in- inb inc ind ine ini inn ino inr ins inu io- iob ioc iod ioe ioi ion ioo ior ios iou ir- irb irc ird ire iri irn iro irr irs iru is- isb isc isd ise isi isn iso isr iss isu iu- iub iuc iud iue iui iur ius n-i nbb nbc nbd nbe nbi nbn nbo nbr nbs nbu ncb ncc ncd nce nci ncn nco ncr ncs ncu ndb ndc ndd nde ndi ndn ndo ndr nds ndu ne- neb nec ned nee nei nen neo ner nes neu nib nic nid nie nii nin nio nir nis niu nnb nnc nne nni nnn nno nns nnu no- nob noc nod noe noi non noo nor nos nou nrb nrc nrd nre nri nrn nro nrr nrs nru nsb nsc nsd nse nsi nsn nso nsr nss nsu nub nuc nud nue nui nun nuo nur nus nuu o-i ob- obb obc obd obe obi obn obo obr obs obu oc- ocb occ ocd oci ocn oco ocr ocs ocu odb odc odd ode odi odn odo odr ods odu oeb oec oed oee oei oen oeo oer oes oib oic oid oie oii oin oio oir ois oiu on- onb onc ond one oni onn ono onr ons onu oo- oob ooc ood ooi oon ooo oor oos or- orb orc ord ore ori orn oro orr ors oru os- osb osc osd ose osi osn oso osr oss osu ou- ouc oud oue oui oun ouo our ous rbb rbc rbd rbe rbi rbn rbo rbr rbs rbu rcb rcc rcd rce rci rcn rco rcr rcs rcu rdb rdc rdd rde rdi rdn rdo rdr rds rdu re- reb rec red ree rei ren reo rer res reu rib ric rid rie rii rin rio rir ris rnb rnc rnd rni rnn rno rnr rns rnu rob roc rod roe roi ron roo ror ros rou rrb rrc rrd rri rrn rrr rrs rru rsb rsc rsd rse rsi rsn rso rsr rss rsu rub ruc rud rue rui run ruo rur rus ruu sbb sbc sbd sbe sbi sbn sbo sbr sbs sbu scb scc scd sce sci scn sco scr scs scu sdb sdc sdd sde sdi sdn sdo sdr sds sdu se- seb sec sed see sei sen seo ser ses seu sib sic sid sie sii sin sio sir sis siu snb snc snd sne sni snn sno snr sns snu sob soc sod soe soi son soo sor sos sou sr- srb src srd sre sri srn sro srr srs ss- ssb ssc ssd sse ssi ssn sso ssr sss ssu sub suc sud sue sui sun suo sur sus suu ubb ubc ube ubi ubn ubo ubr ubs ubu ucb ucc ucd uce uci ucn uco ucr ucs ucu udb udc udd ude udi udn udo udr uds udu ueb uec ued uee uei uen uer ues uib uic uid uie uii uin uio uir uis uiu un- unb unc und une uni unn uno unr uns unu uob uoc uod uoe uon uoo uor uos ur- urb urc urd ure uri urn uro urr urs uru usb usc usd use usi usn uso usr uss usu