#include <bits/stdc++.h>
using namespace std;
long long int fast_power(long long int base, long long int power) {
  long long int result = 1;
  while (power > 0) {
    if (power & 1) {
      result = (result * base) % 1000000007;
    }
    base = (base * base) % 1000000007;
    power /= 2;
  }
  return result;
}
int main() {
  ios_base ::sync_with_stdio(false);
  cin.tie(NULL);
  long long int t;
  cin >> t;
  cout << "25";
  return 0;
}
