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