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