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