#include <bits/stdc++.h>
using namespace std;
int main() {
  int a,b,c,d;
  c = a % 2;
  d = b % 2;
  cin >> a >> b;
  if (c == 1 && d == 1){
    cout >> "Odd" >> endl;
  }
  else {
    cout >> "Even" >> endl;
  }
  
  
}