#include <bits/stdc++.h>
using namespace std;
const int maxn = 1000 + 10;
int a, b;
int main() {
  cin >> a >> b;
  if ((a + b) % 2 == 1)
    cout << "Odd"
         << "\n";
  else
    cout << "Even"
         << "\n";
  return 0;
}
