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