#include <bits/stdc++.h>
using namespace std;
bool b[4000000];
int main() {
  int n, cnt, x[2007], y[2007];
  cin >> n;
  for (int i = 1; i <= n; i++) {
    cin >> x[i];
    b[x[i]] = 1;
  }
  for (int i = 1; i <= n; i++) {
    cin >> y[i];
    b[y[i]] = 1;
  }
  cnt = 0;
  for (int i = 1; i <= n; i++) {
    for (int j = 1; j <= n; j++)
      if (b[x[i] ^ y[j]]) cnt++;
  }
  if (cnt % 2)
    puts("Koyomi");
  else
    puts("Karen");
  return 0;
}
