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 JavaScript (Node.js 12.16.1) (judge verdict: Accepted)

process.stdin.resume();
process.stdin.setEncoding('utf-8');
 
let inputString = '';
let currentLine = 0;
 
process.stdin.on('data', inputStdin => {
    inputString += inputStdin;
});
 
process.stdin.on('end', _ => {
    inputString = inputString.split(/\n/);
    main();    
});
 
function readLine() {
    return inputString[currentLine++];
}

function main() {
  const x = Number(readLine())
  console.log(x === 0 ? 1 : 0)
}