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)

function main(input) {
  var n = input + '';
  checker: while(true){
    var nL = n.length;
    var fN = n[0];
    for(let i=1;i<nL;i++) if(fN !== n[i]){
      var pN = parseFloat(n)+1;
      n = pN + '';
      continue checker;
    }
    console.log(n);
    break;
  }
}
main(require('fs').readFileSync('/dev/stdin', 'utf8'));