#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <cmath>

using namespace std;
using ll = long long;

int main()
{
	int S, F;
	cin >> S >> F;
	if (S % F == 0)
	{
		cout << S / F + 1 << endl;
	}
	else
	{
		cout << S / F + 1 << endl;
	}
	return 0;
}