

Input

The input contains a single integer a (10 ≤ a ≤ 999).

Output

Output 0 or 1.

Examples

Input

13


Output

1


Input

927


Output

1


Input

48


Output

0
#include <bits/stdc++.h>
using namespace std;
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(nullptr);
  int k;
  cin >> k;
  if (k % 2 == 0)
    cout << "0" << endl;
  else
    cout << "1" << endl;
}
