Problem:
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

Solution in Ruby (2.7.1) (judge verdict: Wrong Answer)

n = gets.to_i

mod = 10**9 + 7

ans = 10.pow(n, mod)
ans -= 9.pow(n, mod) * 2
ans += 8.pow(n, mod)
puts ans % mod