题目描述
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.
Examples
Input
1
Output
0
Input
0
Output
1
输入格式
见题面
输出格式
见题面
样例输入
1
样例输出
0