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