-er -ic b-u bbb bbc bbd bbe bbi bbn bbo bbr bbs bbt bbu bcb bcc bcd bce bci bcn bco bcr bcs bct bcu bdb bdc bdd bde bdi bdo bdr bds bdt bdu be- beb bec bed bee bei ben beo ber bes bet beu bi- bib bic bid bie bii bin bio bir bis bit biu bnb bnc bnd bne bni bnn bno bnr bns bnt bnu bob boc bod boe boi bon boo bor bos bot bou brb brd bre bri brn bro brr brs brt bru bsb bsc bsd bse bsi bsn bso bsr bss bst bsu btb btc btd bte bti btn bto btr bts btt btu bub buc bud bue bui bun buo bur bus but buu c-- cbb cbc cbd cbe cbi cbn cbo cbr cbs cbt cbu ccb ccc ccd cce cci ccn cco ccr ccs cct ccu cdb cdc cdd cde cdi cdn cdo cdr cds cdt cdu ce- ceb cec ced cee cei cen ceo cer ces cet ceu ci- cib cic cid cie cii cin cio cir cis cit ciu cn- cnb cnc cnd cne cni cnn cno cnr cns cnt cnu co- cob coc cod coe coi con coo cor cos cot cou crb crc crd cre cri crn cro crr crs crt cru csb csc csd cse csi csn cso csr css cst csu ctb ctc ctd cte cti ctn cto ctr cts ctt ctu cub cuc cud cue cui cun cuo cur cus cut cuu dbb dbc dbd dbe dbi dbn dbo dbr dbs dbt dbu dcb dcc dcd dce dci dcn dco dcr dcs dct dcu ddb ddc ddd dde ddi ddn ddo ddr dds ddt ddu de- deb dec ded dee dei den deo der des det deu di- dib dic did die dii din dio dir dis dit diu dnb dnc dnd dne dni dnn dno dnr dns dnt dob doc dod doe doi don doo dor dos dot dou drb drc drd dre dri drn dro drr drs drt dru dsb dsc dsd dse dsi dsn dso dsr dss dst dsu dtb dtc dtd dte dti dtn dto dtr dts dtt dtu dub duc dud due dui dun duo dur dus dut ebb ebc ebd ebe ebi ebn ebo ebr ebs ebt ebu ec- ecb ecc ecd ece eci ecn eco ecr ecs ect ecu ed- edb edc edd ede edi edn edo edr eds edt edu eeb eec eed eee een eeo eer ees eet eib eic eid eie eii ein eio eir eis eit eiu en- enb enc end ene eni enn eno enr ens ent enu eo- eob eoc eod eoe eoi eon eoo eor eos eot eou erb erc erd ere eri ern ero err ers ert eru es- esb esc esd ese esi esn eso esr ess est esu etb etc etd ete eti etn eto etr ets ett etu eu- eub euc eud eue eui eun eur eus eut i-d ibb ibc ibd ibe ibi ibn ibo ibr ibs ibt ibu icb icc icd ice ici icn ico icr ics ict icu idb idc idd ide idi idn ido idr ids idt idu ie- iec ied iee iei ien ier ies iet iib iic iid iie iii iin iio iir iis iit iiu in- inb inc ind ine ini inn ino inr ins int inu io- iob ioc iod ioe ioi ion ioo ior ios iot iou ir- irb irc ird ire iri irn iro irr irs irt iru is- isb isc isd ise isi isn iso isr iss ist isu itb itc itd ite iti itn ito its itt itu iu- iub iuc iud iue iui iur ius iut n-i nbb nbc nbd nbe nbi nbn nbo nbr nbs nbt nbu ncb ncc ncd nce nci ncn nco ncr ncs nct ncu ndb ndc ndd nde ndi ndn ndo ndr nds ndt ndu ne- neb nec ned nee nei nen neo ner nes net neu nib nic nid nie nii nin nio nir nis nit niu nnb nnc nne nni nnn nno nns nnt nnu no- nob noc nod noe noi non noo nor nos not nou nrb nrc nrd nre nri nrn nro nrr nrs nrt nru nsb nsc nsd nse nsi nsn nso nsr nss nst nsu ntb ntc ntd nte nti ntn nto ntr nts ntt ntu nub nuc nud nue nui nun nuo nur nus nut nuu o-i ob- obb obc obd obe obi obn obo obr obs obt obu oc- ocb occ ocd oci ocn oco ocr ocs oct ocu odb odc odd ode odi odn odo odr ods odt odu oeb oec oed oee oei oen oeo oer oes oet oib oic oid oie oii oin oio oir ois oit oiu on- onb onc ond one oni onn ono onr ons ont onu oo- oob ooc ood ooi oon ooo oor oos oot or- orb orc ord ore ori orn oro orr ors ort oru os- osb osc osd ose osi osn oso osr oss ost osu ot- otb otc otd ote oti otn oto otr ots ott otu ou- ouc oud oue oui oun ouo our ous out rbb rbc rbd rbe rbi rbn rbo rbr rbs rbt rbu rcb rcc rcd rce rci rcn rco rcr rcs rct rcu rdb rdc rdd rde rdi rdn rdo rdr rds rdt rdu re- reb rec red ree rei ren reo rer res ret reu rib ric rid rie rii rin rio rir ris rit rnb rnc rnd rni rnn rno rnr rns rnt rnu rob roc rod roe roi ron roo ror ros rot rou rrb rrc rrd rri rrn rrr rrs rrt rru rsb rsc rsd rse rsi rsn rso rsr rss rst rsu rtb rtc rtd rte rti rtn rto rtr rts rtt rtu rub ruc rud rue rui run ruo rur rus rut ruu sbb sbc sbd sbe sbi sbn sbo sbr sbs sbt sbu scb scc scd sce sci scn sco scr scs sct