#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  scanf("%d", &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 == 2) {
    cout << "4" << endl;
    return 0;
  }
  if (n % 4 == 3) {
    cout << "2" << endl;
    return 0;
  }
  return 0;
}
