a-a a-c aaa aac aah aap aay ac- aca acc ach acp acy aha ahc ahh ahp ahy ap- apa apc aph app apy ay- aya ayc ayh ayp c-- caa cac cah cap cay cca ccc cch ccp ch- cha chc chh chp chy cpa cpc cph cpp cya cyc cyp haa hac hah hap hay hca hcc hch hcp hcy hha hhc hhh hhp hhy hpa hpc hph hpp hpy hy- hya hyc hyh hyp hyy p-p paa pac pah pap pay pca pcc pch pcp pha phc php phy ppa ppc pph ppp py- pya pyc yaa yac yah yap yay yca ycc ych ycp ycy yha yhc ypa yyc yyy