12
 1378
 51202278
 989898989
 4
 7
 9
 6
 8
 12193721
 999999995
 999999999
 11
 999999996
 999999998
 3
 14
 15
 10
 999999994
 1000
 13781378
 5
 999999997
 1000000000
 13
 16
 0

6
 4
 4
 8
 6
 2
 8
 4
 6
 8
 2
 2
 2
 6
 4
 2
 4
 2
 4
 4
 6
 4
 8
 8
 6
 8
 6
 1

#include <bits/stdc++.h>
using namespace std;
void Yuko_Kurama() {
  cin.tie(0);
  ios::sync_with_stdio(false);
}
string n2s(unsigned long long Number) {
  ostringstream ss;
  ss << Number;
  return ss.str();
}
int s2n(string s) {
  istringstream ss(s);
  int result;
  return ss >> result ? result : 0;
}
signed long long Pow(signed long long x, signed long long p) {
  signed long long res = 1;
  for (int i = 0; i < p; i++) res *= x;
  return res;
}
int main() {
  Yuko_Kurama();
  unsigned long long n;
  while (cin >> n) {
    if (n % 4 == 1)
      cout << '8' << endl;
    else if (n % 4 == 2)
      cout << '4' << endl;
    else if (n % 4 == 3)
      cout << '6' << endl;
    else if (n % 4 == 0)
      cout << '1' << endl;
  }
  return 0;
}
