-ey a-a a-c aaa aac aae aaf aan aay ac- aca acc ace acf acn acy aea aec aee aef aen aey af- afa afc afe aff afn afy an- ana anc ane anf ann any ay- aya ayc aye ayf ayn c-- caa cac cae caf can cay cca ccc cce ccf ccn ce- cea cec cee cef cen cey cfa cfc cfe cff cfn cn- cna cnc cne cnf cnn cny cya cyc cye cyf cyn eaa eac eae eaf ean ec- eca ecc ece ecf ecn eea eec eee eef een eey ef- efa efc efe eff en- ena enc ene enf enn eny eya eyc eye eyn faa fac fae faf fan fay fca fcc fce fcf fcn fcy fea fec fee fef fen fey ffa ffc ffe fff ffn ffy fna fnc fne fnf fnn fy- fya fyc fye fyn naa nac nae naf nan nay nca ncc nce ncf ncn ne- nea nec nee nef nen ney nfa nfc nfe nff nfn nna nnc nne nnf nnn nya nyc nye nyf nyn nyy yaa yac yae yaf yan yay yca ycc yce ycf ycy yea yec yee yef yen yey yfa yfc yfe yff yna yne ynn yny yyc yye yyf yyy