#include <bits/stdc++.h>
using namespace std;

int main() {
  int a, b;
  cin >> a >> b;

  if (!(a * b / 2 % 2 = 0)) {
    cout << "Odd" << endl;
  }
  else if (a * b / 2 % 2 = 0) {
    cout << "Even" << endl;
  }
}
