#include <iostream>
using namespace std;
int main(void){
    // Here your code !
    int a,b;
    cin >> a >> b;
    
    if(a == 0){
        cout << "NO" << endl;
        return 0;
    }
    
    if((b / a)*a == b)
    cout << b / a << endl;
    else
    cout << "NO" << endl;
}