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