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