#include<iostream>

using namespace std;

int myabs(int x){

   return max(x, -x);
}

int main(){

   int A, B;
   cin>> A>> B;

   if(myabs(B)%myabs(A)==0){
      cout<< B/A<< endl;
   }else{
      cout<< "NO"<< endl;
   }

   return 0;
}