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