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