#include <bits/stdc++.h>
using namespace std;
int main()
{
    long long int n, m, p = 0;
    cin >> n >> m;
   double check=n/m;
   long long int h=check;
    if(h==check){
        cout<<h<<endl;
    }else{
        cout<<h+1<<endl;
    }
 
}