#pragma GCC optimize("Ofast")
#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
typedef unsigned long long int ull;

mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
ll myRand(ll B) { return (ull)rng() % B; }

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    ull a, b;
    cin >> a >> b;
    if (a % 2 and b % 2) {
        cout << "Odd" << endl;
    } else {
        cout << "Even" << endl;
    }
}