#include<iostream>
using namespace std;

int main() {
	int x, y;
	cin >> x >> y;
	int a = x / y;
	if (a >= 0&&y!=0) {
		cout << a;
	}
	else if (a < 0 &&y!=0) {
		cout << a - 1;
	}
		


	return 0;
}