#include<iostream>
using namespace std;

int main() {
	long work;		// 仕事量
	long day;		// 日数
	long cDay;		// 繰り返し用にコピー
	double dNum;	// 1日あたりの仕事量

	cin >> work;
	cin >> day;

	cDay = day;

	for (int i = 0; i < cDay; ++i) {
		dNum = (double)work / (day*day);
		work -= (long)dNum;
		--day;
	}

	cout << (long)dNum;

	return 0;
}