#include <bits/stdc++.h>
int main() {
  int a, b;
  scanf("%d%d", &a, &b);
  if (a % 2 == 0 && b % 2 == 1)
    printf("Odd");
  else if (a % 2 == 1 && b % 2 == 0)
    printf("Odd");
  else
    printf("Even");
  return 0;
}
