/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	static double f (double x, double x0, double x1, double y, double y0, double y1){
		return  (x - x0) * (y1 - y0) - (y - y0) * (x1 - x0);
	} 
	public static void main (String[] args) throws java.lang.Exception
	{
		double xa, ya, xb, yb, xc, yc, xd, yd,xk,yk;
		xa = -0.5; 
		ya = 0;
		xb = 0;
		yb = 1;
		xc = 0.5;
		yc = 0;
		xd = 0;
		yd = -1;
		Scanner in = new Scanner(System.in);
		xk = in.nextDouble();
		yk = in.nextDouble();
		double l,m,q,w;
		l = f(xk,xa,xb,yk,ya,yb);
		m = f(xk,xb,xc,yk,yb,yc);
		q = f(xk,xc,xd,yk,yc,yd);
		w = f(xk,xd,xa,yk,yd,ya);
		if ((l >= 0) && (m >= 0)  && (q >= 0) && (w >= 0)){
			System.out.printf("Принадлежит " ); 
		}
		else
			System.out.printf("Не принадлежит " ); 
		}
}

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MCAwCg==

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