

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 x;
  scanf("%d", &x);
  if (x % 2 == 0)
    printf("0");
  else
    printf("1");
  return 0;
}
