#include <bits/stdc++.h>   using namespace std;   int main() {     long long n, mod = 1, cnt = 0, i, min;     cin >> n;     vector<int> v{1, 5, 10, 20, 100};     while (n) {       min = INT_MAX;       for (i = 0; i < 5; ++i) {         if (n / v[i] >= 1) {           if (min > n / v[i]) {             min = n / v[i];             mod = n % v[i];           }         }       }       cnt += min;       n = mod;     }     cout << cnt;   }   