#include <bits/stdc++.h>
#define rep(i, n) for(int i=0; i<(int)(n); i++)
using namespace std;
using ll = long long;
using P = pair<int, int>;

int main(){
    int a, b;
    cin >> a >> b;
    int x = 0;
    if(a > b){
        rep(i,a+1){
            if(a % i == 0 && b % i == 0) x++;
        }
    }else{
        rep(i,b+1){
            if(a % i == 0 && b % i == 0) x++;
        }
    }
    string ans;
    if(x % 2 == 0) ans = "Even";
    else ans = "Odd";
    cout << ans << endl;
    return 0;
}