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;
bool cmp(const pair<string, int> &x, const pair<string, int> &y) {
  return x.second > y.second;
}
int fun(int base, long long int n) {
  if (n < 1) return 1;
  if (n == 1) return base % 10;
  if (n % 2 == 0)
    return fun(((base % 10) * (base % 10)) % 10, n / 2);
  else
    return (base * fun(((base % 10) * (base % 10)) % 10, n / 2)) % 10;
}
int main(int argc, char const *argv[]) {
  long long int n;
  cin >> n;
  cout << fun(1378, n);
  return 0;
}
