-er -ic b-u bbb bbc bbd bbe bbi bbn bbo bbr bbu bcb bcc bcd bce bci bcn bco bcr bcu bdb bdc bdd bde bdi bdo bdr bdu be- beb bec bed bee bei ben beo ber beu bi- bib bic bid bie bii bin bio bir biu bnb bnc bnd bne bni bnn bno bnr bnu bob boc bod boe boi bon boo bor bou brb brd bre bri brn bro brr bru bub buc bud bue bui bun buo bur buu c-- cbb cbc cbd cbe cbi cbn cbo cbr cbu ccb ccc ccd cce cci ccn cco ccr ccu cdb cdc cdd cde cdi cdn cdo cdr cdu ce- ceb cec ced cee cei cen ceo cer ceu ci- cib cic cid cie cii cin cio cir ciu cn- cnb cnc cnd cne cni cnn cno cnr cnu co- cob coc cod coe coi con coo cor cou crb crc crd cre cri crn cro crr cru cub cuc cud cue cui cun cuo cur cuu dbb dbc dbd dbe dbi dbn dbo dbr dbu dcb dcc dcd dce dci dcn dco dcr dcu ddb ddc ddd dde ddi ddn ddo ddr ddu de- deb dec ded dee dei den deo der deu di- dib dic did die dii din dio dir diu dnb dnc dnd dne dni dnn dno dnr dob doc dod doe doi don doo dor dou drb drc drd dre dri drn dro drr dru dub duc dud due dui dun duo dur ebb ebc ebd ebe ebi ebn ebo ebr ebu ec- ecb ecc ecd ece eci ecn eco ecr ecu ed- edb edc edd ede edi edn edo edr edu eeb eec eed eee een eeo eer eib eic eid eie eii ein eio eir eiu en- enb enc end ene eni enn eno enr enu eo- eob eoc eod eoe eoi eon eoo eor eou erb erc erd ere eri ern ero err eru eu- eub euc eud eue eui eun eur i-d ibb ibc ibd ibe ibi ibn ibo ibr ibu icb icc icd ice ici icn ico icr icu idb idc idd ide idi idn ido idr idu ie- iec ied iee iei ien ier iib iic iid iie iii iin iio iir iiu in- inb inc ind ine ini inn ino inr inu io- iob ioc iod ioe ioi ion ioo ior iou ir- irb irc ird ire iri irn iro irr iru iu- iub iuc iud iue iui iur n-i nbb nbc nbd nbe nbi nbn nbo nbr nbu ncb ncc ncd nce nci ncn nco ncr ncu ndb ndc ndd nde ndi ndn ndo ndr ndu ne- neb nec ned nee nei nen neo ner neu nib nic nid nie nii nin nio nir niu nnb nnc nne nni nnn nno nnu no- nob noc nod noe noi non noo nor nou nrb nrc nrd nre nri nrn nro nrr nru nub nuc nud nue nui nun nuo nur nuu o-i ob- obb obc obd obe obi obn obo obr obu oc- ocb occ ocd oci ocn oco ocr ocu odb odc odd ode odi odn odo odr odu oeb oec oed oee oei oen oeo oer oib oic oid oie oii oin oio oir oiu on- onb onc ond one oni onn ono onr onu oo- oob ooc ood ooi oon ooo oor or- orb orc ord ore ori orn oro orr oru ou- ouc oud oue oui oun ouo our rbb rbc rbd rbe rbi rbn rbo rbr rbu rcb rcc rcd rce rci rcn rco rcr rcu rdb rdc rdd rde rdi rdn rdo rdr rdu re- reb rec red ree rei ren reo rer reu rib ric rid rie rii rin rio rir rnb rnc rnd rni rnn rno rnr rnu rob roc rod roe roi ron roo ror rou rrb rrc rrd rri rrn rrr rru rub ruc rud rue rui run ruo rur ruu ubb ubc ube ubi ubn ubo ubr ubu ucb ucc ucd uce uci ucn uco ucr ucu udb udc udd ude udi udn udo udr udu ueb uec ued uee uei uen uer uib uic uid uie uii uin uio uir uiu un- unb unc und une uni unn uno unr unu uob uoc uod uoe uon uoo uor ur- urb urc urd ure uri urn uro urr uru uuc uue uun uur uuu