Score : 100 points

Problem Statement

Given is an integer x that is greater than or equal to 0, and less than or equal to 1. Output 1 if x is equal to 0, or 0 if x is equal to 1.

Constraints

  • 0 \leq x \leq 1
  • x is an integer

Input

Input is given from Standard Input in the following format:

x

Output

Print 1 if x is equal to 0, or 0 if x is equal to 1.


Sample Input 1

1

Sample Output 1

0

Sample Input 2

0

Sample Output 2

1