30 10 PPPPPPPPPP PPPPPPPPPP PPPPPPPPPP PPPPPPPPPP PPPPPPPPPH PPPPPPPPPP PHPPPPPHPP PPPPPPPPPP PPPPPPPPPP PPPPPPPHPP PPPPPPPPPP PPPPPPPPPP PPPPPPPPPP PPHPHPPPHP PPPPPPPPPP PPPPPPPPPP PPPPPPPPPP HPHPPHPPPP PPPPPPHPPH HPPPPHPPPP PPPPPPPHHP PPPPHPPPPP PPPPPPPPPP PPPPPPPHPP PPPPPPPPPP PPPPPPPPPP PPPHPPPPPP PPPPPPPPPP PPPPPPPPPP PPPPPPPPPP