#include <iostream>
#include <cmath>
#include <vector>
#include <algorithm>
#include <string>
#include <stack>
#include <queue>
#include <map>

using namespace std;
#define REP(i, n) for(int i = 0;i < n;i++)

int main(int argc, char *argv[]) {
    int a, b, result;
    cin << a << b;
 

    if (a * b % 2 != 0){
        cout << "Odd";
    }else
        cout << "Even";
    return 0;
}