#include <bits/stdc++.h>
using namespace std;
int a[2010], b[2010];
unordered_map<int, int> mp;
int main() {
  int n;
  scanf("%d", &n);
  int ans = 0;
  for (int i = 0; i < n; i++) {
    scanf("%d", &a[i]);
    mp[a[i]] = 1;
  }
  for (int i = 0; i < n; i++) {
    scanf("%d", &b[i]);
    mp[b[i]] = 1;
  }
  for (int i = 0; i < n; i++) {
    for (int j = 0; j < n; j++) {
      if (mp[a[i] ^ b[j]] == 1) ans++;
    }
  }
  if (ans % 2 == 1) {
    puts("Koyomi");
  } else {
    puts("Karen");
  }
}
