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 C# (.NET Core 3.1.201) (judge verdict: Accepted)

using System;
using System.Collections.Generic;
using System.Text;

namespace AtCoder
{
  class Program
  {
    static void Main(string[] args)
    {
      int N = int.Parse(Console.ReadLine());
      if(N == 1)
      {
        Console.WriteLine("0");
        Console.ReadLine();
        return;
      }
      Console.WriteLine("1");
      Console.ReadLine();
    }

  }
}