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