#include <bits/stdc++.h>

using namespace std;

#define fst(t) std::get<0>(t)
#define snd(t) std::get<1>(t)
#define thd(t) std::get<2>(t)

using ll = long long;
using P = std::tuple<int,int>;

const int dx[8] = {-1, 1, 0, 0, -1, -1, 1, 1}, dy[8] = {0, 0, -1, 1, -1, 1, -1, 1};

int main(){
    std::cin.tie(nullptr);
    std::ios::sync_with_stdio(false);

    int A, B;
    std::cin >> A >> B;
    
    for(int i=-100;i<=100;++i){
        if(A * i == B){
            std::cout << i << std::endl;
            return 0;
        }
    }

    std::cout << "NO" << std::endl;
}