#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using vll = vector<ll>;
using vvll = vector<vector<ll>>;
int main() {
  ll a, b, d;
  cin >> a >> b;
  d = (a * b) % 2;
  if (d == 0) {
    cout << "even" << endl;
  } else {
    cout << "odd" << endl;
  }
}
