#include <bits/stdc++.h>

using namespace std;

#define ll long long
#define rep(i, a, n) for (int i = (int)(a); i < (int)(n); i++)
#define rrep(i, n, a) for (int i = (int)(n); i >= (int)(a); i--)

void solve(){
    string a; cin >> a;
    string b; cin >> b;
    if(a[a.size()-1] == '0' | b[b.size()-1] == '0'){
        cout << "Even";
    } else{
        cout << "Odd";
    }
}

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    solve();

    return 0;
}