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