#include <bits/stdc++.h>
using namespace std;
using ll = long long;
const ll inf = 1e18;
const int N = 2 * 1e5 + 10;
ll res;
ll a[N];
void solve() {
  ll n;
  cin >> n;
  if (n == 0) {
    cout << 1;
    return;
  }
  if (n % 4 == 1)
    cout << 8;
  else if (n % 4 == 2)
    cout << 4;
  else if (n % 4 == 3)
    cout << 2;
  else {
    cout << 6;
  }
}
int main(int argc, char const *argv[]) {
  ios_base::sync_with_stdio(0);
  cin.tie(NULL);
  cout.tie(NULL);
  ll t = 1;
  while (t--) {
    solve();
  }
}
