Problem:
Score : 100 points

Problem Statement

Cat Snuke is learning to write characters.
Today, he practiced writing digits 1 and 9, but he did it the other way around.

You are given a three-digit integer n written by Snuke.
Print the integer obtained by replacing each digit 1 with 9 and each digit 9 with 1 in n.

Constraints

111 \leq n \leq 999

n is an integer consisting of digits 1 and 9.

Input

Input is given from Standard Input in the following format:

n

Output

Print the integer obtained by replacing each occurrence of 1 with 9 and each occurrence of 9 with 1 in n.

Sample Input 1

119

Sample Output 1

991

Replace the 9 in the ones place with 1, the 1 in the tens place with 9 and the 1 in the hundreds place with 9. The answer is 991.

Sample Input 2

999

Sample Output 2

111

Solution in JavaScript (node.js v5.12) (judge verdict: Accepted)

'use strict'

const main = input => {
	const args = input.split('\n').map(arg => arg.split(' '))
	const n = args[0][0]
	let a = null
	let b = null
	let c = null

	if (n[0] === '1') a = '9'
	else if (n[0] === '9') a = '1'
	else a = n[0]

	if (n[1] === '1') b = '9'
	else if (n[1] === '9') b = '1'
	else b = n[1]

	if (n[2] === '1') c = '9'
	else if (n[2] === '9') c = '1'
	else c = n[2]

	console.log(`${a}${b}${c}`)
}

main(require('fs').readFileSync('/dev/stdin', 'utf8'))