#include <bits/stdc++.h>
using namespace std;

void fast_io() {
	ios_base::sync_with_stdio(false);
	cin.tie(nullptr);
}

int main() {
	fast_io();
	string a, b;
	cin >> a >> b;
	if (a.back() == '0' || b.back() == '0') {
		cout << "Even\n";
	} else {
		cout << "Odd\n";
	}
}