#include <bits/stdc++.h>
using namespace std;
int main() {
  int a, b, n, i;
  bool p = true;
  cin >> a >> b;
  n = a * b;
  if (n <= 1) p = false;
  for (i = 2; i * i <= n; i++)
    if (n % i == 0) {
      p = false;
      break;
    }
  if (p)
    cout << "Even" << endl;
  else
    cout << "Odd" << endl;
  return 0;
}
