#include <bits/stdc++.h>
using namespace std;

int main() {
  int a, b, x;

  cin >> a >> b;
  
  x = a * b % 2;
  if(x == 1){
    cout << "odd" << endl;
  }
  if(X == 0){
    cout << "even" << endl;
  }
}
    

 



