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.Linq;
using System.Text;
using System.Threading.Tasks;

namespace AtCoder_solve
{
    class Program
    {
        public const ulong mod = 1000000007;
        

        static void Main(string[] args)
        {
            if (Console.ReadLine() == "0") Console.WriteLine("1");
            else Console.WriteLine("0");

        }

        static public long Input()
        {
            return long.Parse(Console.ReadLine());
        }

        static public string[] Input2()
        {
            return Console.ReadLine().Split();
        }

        /*static public void DFS(int h, int w, bool[][] _visited)
        {
            
            if (w < 0 || h < 0 || h > _visited.Length - 1 || w > _visited[h].Length-1 || map[h][w]=='x')
                return;
            if (_visited[h][w])
                return;
            //Console.WriteLine(h + " " + w+" "+ _visited[h].Length + " " + _visited.Length);
            _visited[h][w] = true;

            DFS(h + 1, w,_visited);
            DFS(h - 1, w,_visited);
            DFS(h, w + 1,_visited);
            DFS(h, w - 1,_visited);

        }*/
        
        
        
    }
}