a-a a-c aaa aac aad aaf aak aau aay ac- aca acc acd acf ack acu acy ad- ada adc add adf adk adu ady af- afa afc afd aff afk afu afy aka akc akd akk aku au- aua auc aud auf auk ay- aya ayc ayd ayf ayk ayu c-- caa cac cad caf cak cau cay cca ccc ccd ccf cck ccu cda cdc cdd cdf cdk cdu cdy cfa cfc cfd cff cfk cfu cka ckc ckd cky cua cuc cud cuf cuk cuu cuy cya cyc cyd cyf cyk daa dac dad daf dak dau day dca dcc dcd dcf dck dcu dda ddc ddd ddf ddk ddu ddy dfa dfc dfd dff dfk dfu dka dkc dkk dku dua duc dud duf duk duy dy- dya dyc dyd dyk dyu dyy faa fac fad faf fak fau fay fca fcc fcd fcf fck fcu fcy fda fdc fdd fdf fdk fdu ffa ffc ffd fff ffk ffu ffy fka fkc fkf fkk fua fud fuf fuk fuu fy- fya fyc fyk ka- kaa kac kad kaf kak kau kay kca kcc kcd kck kcu kda kdc kdf kdk kdu kdy kfa kfc kfd kff kfu kkc kkk kku kky kuc kud kuk kuu kuy kya kyc kyd kyu ua- uaa uac uad uaf uak uau uay uca ucc ucd ucf uck ucu uda udc udd udf udk udu ufa ufc ufd uff ufu uka ukc ukf ukk uku uua uuc uuu uyc uyu yaa yac yad yaf yak yau yay yca ycc ycd ycf ycu ycy yda ydy yfa yfc yfd yff yfu yka ykk yua yud yuk yuu yuy yyc yyf yyu yyy