-ic a-a a-c a-i aaa aac aaf aai aap aay ac- aca acc acf aci acp acy af- afa afc aff afi afp afy ai- aia aic aif aii aip aiy ap- apa apc apf api app apy ay- aya ayc ayf ayi ayp c-- caa cac caf cai cap cay cca ccc ccf cci ccp cfa cfc cff cfi cfp ci- cia cic cif cii cip cpa cpc cpf cpi cpp cya cyc cyf cyp faa fac faf fai fap fay fca fcc fcf fci fcp fcy ffa ffc fff ffi ffp ffy fia fic fif fii fip fpa fpc fpi fpp fpy fy- fya fyc fyi fyp i-f ia- iaa iac iaf iai iap ica icc icf ici icp icy ifa ifc iff ifi ifp ify iia iic iif iii iip ipa ipc ipf ipi ipp ipy iya iyc iyy p-p paa pac paf pai pap pay pca pcc pcf pci pcp pfa pfc pff pfi pfp pfy pia pic pif pii pip ppa ppc ppf ppi ppp py- pya pyc pyf yaa yac yaf yai yap yay yca ycc ycf yci ycp ycy yfa yfc yff yif yii yip ypa ypf yyc yyf yyy