

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() {
  int a;
  cin >> a;
  if (a % 2 == 0) {
    cout << "0";
  } else {
    cout << "1";
  }
}
