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