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