-ic a-a a-c a-i aaa aac aaf aai aas aay ac- aca acc acf aci acs acy af- afa afc aff afi afs afy ai- aia aic aif aii ais aiy as- asa asc asf asi ass asy ay- aya ayc ayf ayi ays c-- caa cac caf cai cas cay cca ccc ccf cci ccs cfa cfc cff cfi cfs ci- cia cic cif cii cis csa csc csf csi css csy cya cyc cyf cys faa fac faf fai fas fay fca fcc fcf fci fcs fcy ffa ffc fff ffi ffs ffy fia fic fif fii fis fsa fsc fsf fsi fss fy- fya fyc fyi i-f ia- iaa iac iaf iai ias ica icc icf ici ics icy ifa ifc iff ifi ifs ify iia iic iif iii iis is- isa isc isf isi iss isy iya iyc iys iyy saa sac saf sai sas say sca scc scf sci scs sfa sfc sff sfi sfs sia sic sif sii sis ss- ssa ssc ssf ssi sss sy- sya syc syi sys yaa yac yaf yai yas yay yca ycc ycf yci ycs ycy yfa yfc yff yfs yif yii yis ysa ysc ysi yss ysy yyc yyf yys yyy