Loo Rolls Solution:

#include <bits/stdc++.h>
using namespace std;

int main(){
    // #ifndef TESTING
    // freopen("input.txt", "r", stdin);
    // freopen("output.txt", "w", stdout);
    // #endif

    long l, n;
    cin >> l >> n;
    int rolls = 1;
    long sum = 0;
    while(l % n != 0){
        n -= l % n;
        rolls++;
    }
    cout << rolls;

    return 0;   
}