#include <cmath>
#include <cstdlib>
#include <cstdio>

#include <iostream>
#include <vector>
#include <algorithm>
#include <utility>

int main() {
  long n;
  long ans;

  std::cin >> n;

  ans = 100000 * (100 + n * 5) / 100;
  ans += 5000;
  ans /= 10000;
  ans *= 10000;
  
  std::cout << ans << std::endl;

  return 0;
}