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;
int main() {
  long long n;
  cin >> n;
  if (n == 0) {
    cout << "1" << endl;
    return 0;
  }
  int value, ans;
  value = n / 4;
  value *= 4;
  ans = n - value;
  if (ans == 1) {
    cout << "8" << endl;
  } else if (ans == 2) {
    cout << "4" << endl;
  } else if (ans == 3) {
    cout << "2" << endl;
  } else {
    cout << "6" << endl;
  }
}
