-ic a-a a-c a-i aaa aac aai aas aay ac- aca acc aci acs acy ai- aia aic aii ais aiy as- asa asc asi ass asy ay- aya ayc ayi ays c-- caa cac cai cas cay cca ccc cci ccs ci- cia cic cii cis csa csc csi css csy cya cyc cys ia- iaa iac iai ias ica icc ici ics icy iia iic iii iis is- isa isc isi iss isy iya iyc iys iyy saa sac sai sas say sca scc sci scs sia sic sii sis ss- ssa ssc ssi sss sy- sya syc syi sys yaa yac yai yas yay yca ycc yci ycs ycy yii yis ysa ysc ysi yss ysy yyc yys yyy