#define _CRT_SECURE_NO_WARNINGS // #pragma warning(disable:4996)
#include <iostream>
#include <algorithm>
#include <vector>
#include <string>
#include <functional>
using namespace std; 


int main()
{
	int S, F;
	cin >> S >> F;

	if(!S) {
		cout << 1 << endl;
		return 0;
	}

	int ans = S/F;
	if (S&F) ans++;
	cout << ans << endl;
	return 0;
}