#include <bits/stdc++.h>
using namespace std;
int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  int x;
  int c = 0;
  while (cin >> x) {
    if (!(x & 1))
      cout << "Even" << endl;
    else
      cout << "Odd" << endl;
  }
  return 0;
}
