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