#include <bits/stdc++.h>
using namespace std;
vector<char> v;
vector<int> num;
string s;
int table[2][101];
int main() {
  long int a, b;
  s = "Odd";
  cin >> a >> b;
  if (a * b == 0) s = "Even";
  cout << s << endl;
  return 0;
}
