#include <bits/stdc++.h>
using namespace std;
const int mxN = 2e5;
int n, a[mxN], k;
void solve() {
  long long n;
  cin >> n;
  if (n == 0) {
    cout << 1 << endl;
    return;
  }
  if (n % 4 == 1) {
    cout << 8 << endl;
  } else if (n % 4 == 2) {
    cout << 4 << endl;
  } else if (n % 4 == 3) {
    cout << 2 << endl;
  } else if (n % 4 == 0) {
    cout << 6 << endl;
  }
}
int main() {
  ios::sync_with_stdio(0);
  cin.tie(0);
  solve();
}
