#include <bits/stdc++.h>
using namespace std;
int main() {
  int a, b, k;
  0 <= a <= 10000;
  1 <= b <= 10000;
  0 <= k;
  cin >> a >> b;
  if (a * b == 2 * k) {
    cout << "Even" << endl;
  } else {
    cout << "Odd" << endl;
  }
}
