#include <bits/stdc++.h>
using namespace std;
int v[2000003], a[3000], b[3000];
int main() {
  int n;
  scanf("%d", &(n));
  for (int(i) = (0); (i) < (n); (i)++) {
    scanf("%d", &(a[i]));
    v[a[i]] = 1;
  }
  for (int(i) = (0); (i) < (n); (i)++) {
    scanf("%d", &(b[i]));
    v[b[i]] = 1;
  }
  int cnt = 0;
  for (int(i) = (0); (i) < (n); (i)++) {
    for (int(j) = (0); (j) < (n); (j)++) {
      if (v[a[i] ^ b[j]] == 1) ++cnt;
      if (v[b[j] ^ a[i]] == 1) ++cnt;
    }
  }
  if (cnt % 2) {
    printf("Koyomi\n");
  } else
    printf("Karen\n");
  return 0;
}
