#include <iostream>
using namespace std;

int main(){
    int f,s;
    cin >> f >> s;
    
    if(f < s){
        cout << 1 << endl;
    }else if(f % s == 0){
        cout << 2 << endl;
    } else {
        cout << f / s + 1 << endl;
    }

    return 0;
}