//
//	Hello
//
// goal: read a score and then out "P" , "F"
//

import java.util.Scanner;
class Hello
{
	public static void main(String[] args)
	{
		Scanner input = new Scanner(System.in);
		int score = input.nextInt();
		if(score >= 60)
			System.out.println("P");
		else
			System.out.println("F");

		System.out.println("Hello CS212");
	}
}