

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>
int main() {
  int n;
  scanf("%d", &n);
  if (n & 1)
    puts("1");
  else
    puts("0");
}
