a-a aaa aad aan aap aay ad- ada add adn adp ady an- ana and ann anp any ap- apa apd apn app apy ay- aya ayd ayn ayp daa dad dan dap day dda ddd ddn ddp ddy dna dnd dnn dnp dny dpa dpd dpn dpp dy- dya dyd dyn dyp dyy naa nad nan nap nay nda ndd ndn ndp ndy nna nnn nnp npa npd npn npp nya nyd nyn nyp nyy p-p paa pad pan pap pay pda pdd pdn pdp pn- pna pnd pnn pnp pny ppa ppd ppn ppp py- pya pyd pyn yaa yad yan yap yay yda ydn ydy yna ynd ynn ynp yny ypa ypd yyy