-er -ic b-u bbb bbc bbd bbe bbi bbn bbo bbr bbt bbu bcb bcc bcd bce bci bcn bco bcr bct bcu bdb bdc bdd bde bdi bdo bdr bdt bdu be- beb bec bed bee bei ben beo ber bet beu bi- bib bic bid bie bii bin bio bir bit biu bnb bnc bnd bne bni bnn bno bnr bnt bnu bob boc bod boe boi bon boo bor bot bou brb brd bre bri brn bro brr brt bru btb btc btd bte bti btn bto btr btt btu bub buc bud bue bui bun buo bur but buu c-- cbb cbc cbd cbe cbi cbn cbo cbr cbt cbu ccb ccc ccd cce cci ccn cco ccr cct ccu cdb cdc cdd cde cdi cdn cdo cdr cdt cdu ce- ceb cec ced cee cei cen ceo cer cet ceu ci- cib cic cid cie cii cin cio cir cit ciu cn- cnb cnc cnd cne cni cnn cno cnr cnt cnu co- cob coc cod coe coi con coo cor cot cou crb crc crd cre cri crn cro crr crt cru ctb ctc ctd cte cti ctn cto ctr ctt ctu cub cuc cud cue cui cun cuo cur cut cuu dbb dbc dbd dbe dbi dbn dbo dbr dbt dbu dcb dcc dcd dce dci dcn dco dcr dct dcu ddb ddc ddd dde ddi ddn ddo ddr ddt ddu de- deb dec ded dee dei den deo der det deu di- dib dic did die dii din dio dir dit diu dnb dnc dnd dne dni dnn dno dnr dnt dob doc dod doe doi don doo dor dot dou drb drc drd dre dri drn dro drr drt dru dtb dtc dtd dte dti dtn dto dtr dtt dtu dub duc dud due dui dun duo dur dut ebb ebc ebd ebe ebi ebn ebo ebr ebt ebu ec- ecb ecc ecd ece eci ecn eco ecr ect ecu ed- edb edc edd ede edi edn edo edr edt edu eeb eec eed eee een eeo eer eet eib eic eid eie eii ein eio eir eit eiu en- enb enc end ene eni enn eno enr ent enu eo- eob eoc eod eoe eoi eon eoo eor eot eou erb erc erd ere eri ern ero err ert eru etb etc etd ete eti etn eto etr ett etu eu- eub euc eud eue eui eun eur eut i-d ibb ibc ibd ibe ibi ibn ibo ibr ibt ibu icb icc icd ice ici icn ico icr ict icu idb idc idd ide idi idn ido idr idt idu ie- iec ied iee iei ien ier iet iib iic iid iie iii iin iio iir iit iiu in- inb inc ind ine ini inn ino inr int inu io- iob ioc iod ioe ioi ion ioo ior iot iou ir- irb irc ird ire iri irn iro irr irt iru itb itc itd ite iti itn ito itt itu iu- iub iuc iud iue iui iur iut n-i nbb nbc nbd nbe nbi nbn nbo nbr nbt nbu ncb ncc ncd nce nci ncn nco ncr nct ncu ndb ndc ndd nde ndi ndn ndo ndr ndt ndu ne- neb nec ned nee nei nen neo ner net neu nib nic nid nie nii nin nio nir nit niu nnb nnc nne nni nnn nno nnt nnu no- nob noc nod noe noi non noo nor not nou nrb nrc nrd nre nri nrn nro nrr nrt nru ntb ntc ntd nte nti ntn nto ntr ntt ntu nub nuc nud nue nui nun nuo nur nut nuu o-i ob- obb obc obd obe obi obn obo obr obt obu oc- ocb occ ocd oci ocn oco ocr oct ocu odb odc odd ode odi odn odo odr odt odu oeb oec oed oee oei oen oeo oer oet oib oic oid oie oii oin oio oir oit oiu on- onb onc ond one oni onn ono onr ont onu oo- oob ooc ood ooi oon ooo oor oot or- orb orc ord ore ori orn oro orr ort oru ot- otb otc otd ote oti otn oto otr ott otu ou- ouc oud oue oui oun ouo our out rbb rbc rbd rbe rbi rbn rbo rbr rbt rbu rcb rcc rcd rce rci rcn rco rcr rct rcu rdb rdc rdd rde rdi rdn rdo rdr rdt rdu re- reb rec red ree rei ren reo rer ret reu rib ric rid rie rii rin rio rir rit rnb rnc rnd rni rnn rno rnr rnt rnu rob roc rod roe roi ron roo ror rot rou rrb rrc rrd rri rrn rrr rrt rru rtb rtc rtd rte rti rtn rto rtr rtt rtu rub ruc rud rue rui run ruo rur rut ruu tbb tbc tbd tbe tbi tbn tbo tbr tbt tbu tcb tcc tcd tce tci tcn tco tcr tct tcu tdb tdc tdd tde tdi tdn tdo tdr tdt tdu te- teb tec ted tee tei ten teo ter tet teu tib tic tid tie tii tin tio tir tit tiu tnb tnc tnd tne tni tnn tno tnr tnt to- tob toc tod toe toi ton too tor tot tou trb trc trd tre tri trn tro trr trt tru ttb ttc ttd tte tti ttn tto ttr ttt ttu tub tuc tud tue tui tun tuo tur tut tuu ubb ubc ube ubi ubn ubo ubr ubt ubu ucb ucc ucd uce uci ucn uco ucr uct ucu udb udc udd ude udi udn udo udr udt udu ueb uec ued uee uei uen uer uet uib uic uid uie uii uin uio uir uit uiu un- unb unc und une uni unn uno unr unt unu uob uoc uod uoe uon uoo uor uot ur- urb urc urd ure uri urn uro urr urt uru utb utc utd ute uti utn uto utr utt utu uuc uue uun uur