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>
int main() {
  long long a, b;
  while (~scanf("%lld", &a)) {
    if (a % 4 == 1)
      printf("8\n");
    else if (a % 4 == 2)
      printf("4\n");
    else if (a % 4 == 3)
      printf("2\n");
    else
      printf("6\n");
  }
  return 0;
}
