#include <bits/stdc++.h>
using namespace std;
string sJudge;
void judge() {
  int a, b;
  cin >> a >> b;
  if (a % 2 == 0 || b % 2 == 0) {
    sJudge = "even";
  } else {
    sJudge = "odd";
  }
}
int main() {
  judge();
  cout << sJudge << endl;
}
