#include <bits/stdc++.h>
#include <vector>
#include <iostream>
#include <map>
#include <string>
#include <cmath>
#include <algorithm>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
using ll = long long;
using P = pair<int, int>;

int main() {
    
    ll a,b;
    cin >> a >> b;
    
    if(a<b) {
        cout << 1 << endl;
    }
    else {
        cout << a/b + 1 << endl;
    }
    
}