#include<iostream>
#define abs(a) (a)>0?(a):(-a)
using namespace std;
int main(){
	int a,b,c;
	cin>>a>>b;
	c=b/a;
	if((abs(b))%(abs(a))==0){
		cout<<c<<endl;
	}else{
		cout<<"NO"<<endl;
	}
	return 0;
}