a-a a-c aaa aac aaf aan aas aay ac- aca acc acf acn acs acy af- afa afc aff afn afs afy an- ana anc anf ann ans any as- asa asc asf asn ass asy ay- aya ayc ayf ayn ays c-- caa cac caf can cas cay cca ccc ccf ccn ccs cfa cfc cff cfn cfs cn- cna cnc cnf cnn cns cny csa csc csf csn css csy cya cyc cyf cyn cys faa fac faf fan fas fay fca fcc fcf fcn fcs fcy ffa ffc fff ffn ffs ffy fna fnc fnf fnn fns fsa fsc fsf fsn fss fy- fya fyc fyn naa nac naf nan nas nay nca ncc ncf ncn ncs nfa nfc nff nfn nfs nna nnc nnf nnn nns nsa nsc nsf nsn nss nsy nya nyc nyf nyn nys nyy saa sac saf san sas say sca scc scf scn scs sfa sfc sff sfn sfs sna snc snf snn sns sny ss- ssa ssc ssf ssn sss sy- sya syc syn sys yaa yac yaf yan yas yay yca ycc ycf ycs ycy yfa yfc yff yfs yna ynn yns yny ysa ysc yss ysy yyc yyf yys yyy