#include <bits/stdc++.h>
#define rep(i,n) for(int i=0;i<n;i++)
//#define int long long
using namespace std;

signed main()
{
	int S, F, ans;

	cin >> S >> F;

	ans = S / F;
	if (S % F >= 0) ans++;

	cout << ans << endl;
}