#include <bits/stdc++.h>
using namespace std;
int main() {
  long n;
  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;
  }
}
