func_code_string: #include <bits/stdc++.h>   int x[2002], y[2002];   using namespace std;   int main() {     int n;     cin >> n;     set<int> S;     for (int i = 1; i <= n; ++i) {       cin >> x[i];       S.insert(x[i]);     }     for (int i = 1; i <= n; ++i) {       cin >> y[i];       S.insert(y[i]);     }     int val = 0;     for (int i = 1; i <= n; ++i) {       for (int j = 1; j <= n; ++j) {         if (S.find(x[i] ^ y[j]) != S.end()) val++;       }     }     if (val & 1)       cout <<  Koyomi n ;     else       cout <<  Karen n ;     return 0;   }   