hhh hhn hho hhp hhy hnh hnn hno hny hoh hon hoo hop hox hoy hph hpn hpo hpp hpy hy- hyh hyn hyo hyp hyy nhh nhn nhp nhy nnh nnn nno nnp no- noh non noo nop nox noy nph npn npo npp nyn nyo nyp nyx nyy ohh ohn oho ohp on- onh onn ono onp onx ony oo- ooh oon ooo oop oox op- oph opn opo opp opx opy ox- oxn oxo oxx oxy oyo p-p phn pho php phx phy pn- pnh pnn pno pnp pnx pny poh pon poo pop pox poy pph ppn ppo ppp ppx py- pyn pyo pyx xhp xno xon xoo xop xox xpn xpo xpp xxo xxp xxx xxy xyp xyy ynn ynp yny yon yoo yop yox yoy ypo yxy yyy