-er a-a a-c aaa aac aad aae aan aao aar aau ac- aca acc acd ace acn aco acr acu ad- ada adc add ade adn ado adr adu aea aec aed aee aen aeo aer aeu an- ana anc and ane ann ano anr anu aoa aoc aod aoe aon aoo aor aou ar- ara arc ard are arn aro arr aru au- aua auc aud aue aun auo aur c-- caa cac cad cae can cao car cau cca ccc ccd cce ccn cco ccr ccu cda cdc cdd cde cdn cdo cdr cdu ce- cea cec ced cee cen ceo cer ceu cn- cna cnc cnd cne cnn cno cnr cnu co- coa coc cod coe con coo cor cou cra crc crd cre crn cro crr cru cua cuc cud cue cun cuo cur cuu daa dac dad dae dan dao dar dau dca dcc dcd dce dcn dco dcr dcu dda ddc ddd dde ddn ddo ddr ddu de- dea dec ded dee den deo der deu dna dnc dnd dne dnn dno dnr doa doc dod doe don doo dor dou dra drc drd dre drn dro drr dru dua duc dud due dun duo dur eaa eac ead eae ean eao ear eau ec- eca ecc ecd ece ecn eco ecr ecu ed- eda edc edd ede edn edo edr edu eea eec eed eee een eeo eer en- ena enc end ene enn eno enr enu eo- eoa eoc eod eoe eon eoo eor eou era erc erd ere ern ero err eru eu- eua euc eud eue eun eur naa nac nad nae nan nao nar nau nca ncc ncd nce ncn nco ncr ncu nda ndc ndd nde ndn ndo ndr ndu ne- nea nec ned nee nen neo ner neu nna nnc nne nnn nno nnu no- noa noc nod noe non noo nor nou nra nrc nrd nre nrn nro nrr nru nua nuc nud nue nun nuo nur nuu oaa oac oad oae oan oao oar oau oc- oca occ ocd ocn oco ocr ocu oda odc odd ode odn odo odr odu oea oec oed oee oen oeo oer on- ona onc ond one onn ono onr onu oo- ooa ooc ood oon ooo oor or- ora orc ord ore orn oro orr oru ou- oua ouc oud oue oun ouo our ra- raa rac rad rae ran rao rar rau rca rcc rcd rce rcn rco rcr rcu rda rdc rdd rde rdn rdo rdr rdu re- rea rec red ree ren reo rer reu rna rnc rnd rnn rno rnr rnu roa roc rod roe ron roo ror rou rra rrc rrd rrn rrr rru rua ruc rud rue run ruo rur ruu ua- uaa uac uad uae uan uao uar uau uca ucc ucd uce ucn uco ucr ucu uda udc udd ude udn udo udr udu uea uec ued uee uen uer un- una unc und une unn uno unr unu uoa uoc uod uoe uon uoo uor ur- ura urc urd ure urn uro urr uru uua uuc uue uun uur uuu