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