func_code_string: #include <bits/stdc++.h>   using namespace std;   const int mxN = 2e5;   int n, a[mxN], k;   void solve() {     long long n;     cin >> n;     if (n == 0) {       cout << 1 << endl;       return;     }     if (n % 4 == 1) {       cout << 8 << endl;     } else if (n % 4 == 2) {       cout << 4 << endl;     } else if (n % 4 == 3) {       cout << 2 << endl;     } else if (n % 4 == 0) {       cout << 6 << endl;     }   }   int main() {     ios::sync_with_stdio(0);     cin.tie(0);     solve();   }   