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 Java7 (OpenJDK 1.7.0) (judge verdict: Accepted)

import java.util.*;

public class Main {
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        String n = sc.next();
        String[] ns1 = n.split("");
        List<String> s = Arrays.asList(ns1);
        List<String> kotae = new ArrayList<>();
        int x = 0;
        int y = 0;
        int z = 0;
        for(int i = 0; i < s.size(); i++){
            if (s.get(i).equals("1")){
                kotae.add("9");
            }
            else if(s.get(i).equals("9")){
                kotae.add("1");
            }
        }
        if(kotae.size() == 1){
            z = Integer.parseInt(kotae.get(0)) * 1;
        }
        else if(kotae.size() == 2){
            y = Integer.parseInt(kotae.get(0)) * 10;
            z = Integer.parseInt(kotae.get(1)) * 1;
        }
        else if(kotae.size() == 3){
            x = Integer.parseInt(kotae.get(0)) * 100;
            y = Integer.parseInt(kotae.get(1)) * 10;
            z = Integer.parseInt(kotae.get(2)) * 1;
        }

        System.out.println(x + y + z);
    }
}