#include <iostream>
#include <vector>
int main ()
{
int decimalNumber = 0;
std::vector <int> five;
int r = 0;
  std::cin >> decimalNumber;

  while (decimalNumber >= 0) {
    r = decimalNumber % 5;
        five.push_back(r);
    if (r == 0) {
        decimalNumber /= 5;
    } else {
        decimalNumber -= r*5;
    }
  }

  for (int i = 0; i < five.size(); i ++) {
    std::cout << five[i];
  }
}