Untitled

import java.util.Scanner;

public class P1 {
	public static void Sol(int a, int b) {
		if (a != 0) {
			if (b != 0) {
				System.out.println("x = " + (-b * 1.0) / a);
			} else {
				System.out.println("x = " + 0);
			}
		} else {
			if (b != 0)
				System.out.println("Phuong trinh vo nghiem");
			else
				System.out.println("Phuong trinh vo so nghiem");
		}
	}

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

		int a = sc.nextInt();
		int b = sc.nextInt();

//		System.out.println(Sol(n));
		Sol(a, b);
//		if (Sol(n)) {
//			System.out.println("YES");
//		} else {
//			System.out.println("NO");
//		}
	}
}