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

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    string A, B;
    if (!(cin >> A >> B)) return 0;
    bool even = (A.back() == '0') || (B.back() == '0');
    cout << (even ? "Even" : "Odd") << '\n';
    return 0;
}