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