#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ld = long double;
using P = pair<ll, ll>;
int main() {
  ll a, b;
  cin >> a >> b;
  string res = "Odd";
  if (a * b % 2 == 0) res = "even";
  cout << res << endl;
}
