#include <bits/stdc++.h>
using namespace std;
int h[2000000] = {};
int main() {
  int j, n, i, a[100000], x, y, c = 0;
  cin >> n;
  for (i = 0; i < 2 * n; i++) {
    {
      cin >> a[i];
      h[a[i]]++;
    }
  }
  for (i = 0; i < n; i++) {
    for (j = i + 1; j < n; j++) {
      if (h[a[i] ^ a[j]] && (a[j] == a[i]))
        c++;
      else if (h[a[i] ^ a[j]])
        c += 2;
    }
  }
  if (c % 2 != 0)
    cout << "Koyomi";
  else
    cout << "Karen";
}
