import java.util.Scanner;

public class class_name {
    public static void main(String[] args){
        //System.out.println("Hello World!");
        
        int a;
        int b;
        
        Scanner sc = new Scanner(System.in);
        a = sc.nextInt();
        b = sc.nextInt();
            
        if (Math.abs(a)<=Math.abs(b) && b%a==0){
            System.out.println(b/a);
        }else{
            System.out.println("NO");
        }
    }
}