#include <bits/stdc++.h>
using namespace std;
const int MOD = 100000000;
int main() {
  int n;
  cin >> n;
  if (n == 0) {
    cout << 1 << endl;
  } else if (n % 4 == 1) {
    cout << 8 << endl;
  } else if (n % 4 == 2) {
    cout << 4 << endl;
  } else if (n % 4 == 3) {
    cout << 2 << endl;
  } else {
    cout << 6 << endl;
  }
  return 0;
}
