

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 a;
  while (scanf("%d", &a) != EOF) {
    if (a % 2 == 0)
      printf("0\n");
    else
      printf("1\n");
  }
  return 0;
}
