func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     unsigned long long n, sum = 0;     cin >> n;     if (n % 2 == 0) {       if ((n / 2) % 2 == 0)         cout << 0 << endl;       else         cout << 1 << endl;     } else {       if ((n / 2) % 2 == 0)         cout << 1 << endl;       else         cout << 0 << endl;     }     return 0;   }   