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