//
//  	P.64
//

import java.util.Scanner;

class P64
{
	public static void main(String[] args)
	{
		Scanner input = new Scanner(System.in);

		System.out.print("Input x ? ");

		double x = input.nextDouble();

		if(x>0)
			System.out.println(x + " is positive");
		else if (x<0)
			System.out.println(x + " is negative");
		else
			System.out.println(x + " is zero");
	}
}