import java.math.BigInteger;
import java.util.Arrays;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.Scanner;
import java.util.Set;

public class Main {
	
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		
		final int A = sc.nextInt();
		final int B = sc.nextInt();
		
		System.out.println((Math.abs(B) % Math.abs(A)) == 0 ? (B / A) : "NO");
	}
}