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

int main() {
  
  int a;
  int b;
  
  cin >> a >> b;
  
  if ( ( a * b ) % 2 == 0 ) {
    
    cout << "odd" << endl;
  }
  
  else {
    
    cout << "even" << endl;
  }