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