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: Runtime Error)

// parameter "input" gets all data
function Main(input) {
  const stringOfN = input.toString()
  const ArrayOfN = stringOfN.split("")
  let res = ArrayOfN.map(function(char){
    if (char === '1' ) return '9'
    if (char === '9' ) return '1'
  }).toString()
  res = res.replace(/,/gi, "")
	console.log(res);
}
// Don't edit this line!
Main(require("fs").readFileSync("/dev/stdin", "utf8"));