#include <iostream>
#include <vector>
#include <algorithm>
#include <string>
#include <iomanip>
#include <functional>
#include <cmath>
using namespace std;

int main() {
	int w, d, x;
	cin >> w >> d;

	for (int i = d; i > 0; i--) {
		x = w / pow(i, 2);
		w -= x;
	}
	cout << x << endl;
	return 0;
}