a-a aaa aad aan aao aap aay ad- ada add adn ado adp ady an- ana and ann ano anp any aoa aod aon aoo aop ap- apa apd apn apo app apy ay- aya ayd ayn ayo ayp daa dad dan dao dap day dda ddd ddn ddo ddp ddy dna dnd dnn dno dnp dny doa dod don doo dop doy dpa dpd dpn dpo dpp dy- dya dyd dyn dyo dyp dyy naa nad nan nao nap nay nda ndd ndn ndo ndp ndy nna nnn nno nnp no- noa nod non noo nop noy npa npd npn npo npp nya nyd nyn nyo nyp nyy oaa oad oan oao oap oda odd odn odo odp on- ona ond onn ono onp ony oo- ooa ood oon ooo oop op- opa opd opn opo opp opy oya oyd oyo p-p paa pad pan pao pap pay pda pdd pdn pdo pdp pn- pna pnd pnn pno pnp pny poa pod pon poo pop poy ppa ppd ppn ppo ppp py- pya pyd pyn pyo yaa yad yan yao yap yay yda ydn ydo ydy yna ynd ynn ynp yny yod yon yoo yop yoy ypa ypd ypo yyy