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 int n;
  while (cin >> n) {
    int s = n % 4;
    if (n == 0)
      cout << "1\n";
    else
      switch (s) {
        case 0:
          cout << "6\n";
          break;
        case 1:
          cout << "8\n";
          break;
        case 2:
          cout << "4\n";
          break;
        case 3:
          cout << "2\n";
          break;
      }
  }
  return 0;
}
