a-a a-c aaa aac aad aae aak aau ac- aca acc acd ace ack acu ad- ada adc add ade adk adu aea aec aed aee aek aeu aka akc akd ake akk aku au- aua auc aud aue auk c-- caa cac cad cae cak cau cca ccc ccd cce cck ccu cda cdc cdd cde cdk cdu ce- cea cec ced cee cek ceu cka ckc ckd cua cuc cud cue cuk cuu daa dac dad dae dak dau dca dcc dcd dce dck dcu dda ddc ddd dde ddk ddu de- dea dec ded dee dek deu dka dkc dke dkk dku dua duc dud due duk eaa eac ead eae eak eau ec- eca ecc ecd ece eck ecu ed- eda edc edd ede edk edu eea eec eed eee eek eka ekc ekd eke eku eu- eua euc eud eue ka- kaa kac kad kae kak kau kca kcc kcd kce kck kcu kda kdc kde kdk kdu ke- kea kec ked kee kek kkc kke kkk kku kuc kud kue kuk kuu ua- uaa uac uad uae uak uau uca ucc ucd uce uck ucu uda udc udd ude udk udu uea uec ued uee uka ukc uke ukk uku uua uuc uue uuu