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 Python (3.8.2) (judge verdict: Wrong Answer)

n = int(input())

x = 0
i = 0

k = n-2

l = [(i+1)*((9**i) * 10**(k-i)) for i in range(k+1)]
"""
while(k>=i):
  x += (i+1)*((9**i) * 10**(k-i))
  i += 1

x *= 2
"""
x = sum(l)
x *= 2
print(x%(10**9 + 7))