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