-er a-a a-c a-q aaa aac aad aae aaf aaq aar aau ac- aca acc acd ace acf acq acr acu ad- ada adc add ade adf adq adr adu aea aec aed aee aef aeq aer aeu af- afa afc afd afe aff afq afr afu aqa aqc aqf aqr ar- ara arc ard are arf arq arr aru au- aua auc aud aue auf aur c-- caa cac cad cae caf caq car cau cca ccc ccd cce ccf ccr ccu cda cdc cdd cde cdf cdq cdr cdu ce- cea cec ced cee cef ceq cer ceu cfa cfc cfd cfe cff cfq cfr cfu cqa cqc cqd cqf cra crc crd cre crf crq crr cru cua cuc cud cue cuf cuq cur cuu daa dac dad dae daf daq dar dau dca dcc dcd dce dcf dcr dcu dda ddc ddd dde ddf ddq ddr ddu de- dea dec ded dee def deq der deu dfa dfc dfd dfe dff dfq dfr dfu dqa dqe dra drc drd dre drq drr dru dua duc dud due duf dur eaa eac ead eae eaf ear eau ec- eca ecc ecd ece ecf ecq ecr ecu ed- eda edc edd ede edf edr edu eea eec eed eee eef eer ef- efa efc efd efe eff efr eqa eqe eqf eqq equ era erc erd ere erf erq err eru eu- eua euc eud eue euf eur faa fac fad fae faf faq far fau fca fcc fcd fce fcf fcr fcu fda fdc fdd fde fdf fdr fdu fea fec fed fee fef fer feu ffa ffc ffd ffe fff ffr ffu fra frc frd fre frf frq frr fru fua fud fue fuf fur fuu qaa qac qad qaf qar qau qca qcc qcd qda qdr qec qed qee qef qfa qfc qfd qfe qff qqq qqu qra qrc qre qru qu- qua qud que qur ra- raa rac rad rae raf raq rar rau rca rcc rcd rce rcf rcr rcu rda rdc rdd rde rdf rdr rdu re- rea rec red ree ref req rer reu rfa rfc rfd rfe rff rfq rfr rfu rqc rra rrc rrd rrf rrq rrr rru rua ruc rud rue ruf rur ruu ua- uaa uac uad uae uaf uaq uar uau uca ucc ucd uce ucf ucr ucu uda udc udd ude udf udr udu uea uec ued uee uef uer ufa ufc ufd ufe uff ufr ufu ur- ura urc urd ure urf urr uru uua uuc uue uur uuu