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