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