#include <bits/stdc++.h>
using namespace std;
int main() {
  int cnt, n;
  cin >> n;
  cnt = 0;
  cnt += n / 100;
  n %= 100;
  cnt += n / 20;
  n %= 20;
  cnt += n / 10;
  n %= 10;
  cnt += n / 5;
  n %= 5;
  cnt += n;
  cout << cnt << endl;
  return 0;
}
