#include <bits/stdc++.h>
using namespace std;
int main(int argc, char const *argv[]) {
  int n;
  scanf("%d", &n);
  if (n == 0)
    printf("1\n");
  else {
    n %= 4;
    switch (n) {
      case 1:
        printf("8\n");
        break;
      case 2:
        printf("4\n");
        break;
      case 3:
        printf("2\n");
        break;
      case 0:
        printf("6\n");
        break;
    }
  }
  return 0;
}
