a-a a-c aaa aac aan aas aay ac- aca acc acn acs acy an- ana anc ann ans any as- asa asc asn ass asy ay- aya ayc ayn ays c-- caa cac can cas cay cca ccc ccn ccs cn- cna cnc cnn cns cny csa csc csn css csy cya cyc cyn cys naa nac nan nas nay nca ncc ncn ncs nna nnc nnn nns nsa nsc nsn nss nsy nya nyc nyn nys nyy saa sac san sas say sca scc scn scs sna snc snn sns sny ss- ssa ssc ssn sss sy- sya syc syn sys yaa yac yan yas yay yca ycc ycs ycy yna ynn yns yny ysa ysc yss ysy yyc yys yyy