#include <bits/stdc++.h>
using namespace std;
int main() {
  int a, b;
  long c;
  std::cin >> a >> b;
  string ans;
  c = a * b;
  if (c % 2 == 1) {
    ans = "Oddo";
  } else {
    ans = "Even";
  }
  for (auto&& x : ans) cout << x;
  cout << endl;
  return 0;
}
