#include <bits/stdc++.h>
using namespace std;
const int maxn = 2010;
int a[maxn], b[maxn];
bool ex[4000000];
int n;
int main() {
  scanf("%d", &n);
  for (int i = 0; i < n; ++i) {
    scanf("%d", &a[i]);
    ex[a[i]] = 1;
  }
  for (int i = 0; i < n; ++i) {
    scanf("%d", &b[i]);
    ex[b[i]] = 1;
  }
  int pri = 0;
  for (int i = 0; i < n; ++i) {
    for (int j = 0; j < n; ++j) {
      if (ex[a[i] ^ b[j]]) pri++;
    }
  }
  if (pri % 2)
    printf("Koyomi\n");
  else
    printf("Karen\n");
  return 0;
}
