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