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