#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int A, B, C;
  string op;
  cin >> A >>  B;
  C = A * B / 2 %
    
  if (C == 0){
    cout << "Odd" << endl;
  }
    else
     { cout << "even" << endl;
        }
}