#include <iostream>
#include <algorithm>
#include <string>
#include <vector>
#include <map>
#include <set>
#include <stdio.h>
#include <cstring>
#include <queue>
#include <stack>
#include <functional>
using namespace std;
#define Would
#define you


int main() {
	int a, b;
	cin >> a >> b;
	if (abs(b) % abs(a) == 0) { cout << b / a << endl; }
	else { cout << "NO" << endl; }
}