#include <iostream>

using namespace std;

int main()
{
	cin.tie(nullptr);
	ios::sync_with_stdio(false);

	string A, B;
	A.reserve(64), B.reserve(64);
	cin >> A >> B;

	if (A.back() == '0' || B.back() == '0') cout << "Even\n";
	else cout << "Odd\n";

	return 0;
}