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