func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n;     while (cin >> n) {       if (n == 1)         cout << 8 << endl;       else if (!n)         cout << 1 << endl;       else if (n % 4 == 0)         cout << 6 << endl;       else if (n % 4 == 1)         cout << 8 << endl;       else if (n % 4 == 2)         cout << 4 << endl;       else if (n % 4 == 3)         cout << 2 << endl;     }   }   