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 C# (Mono 4.6.2.0) (judge verdict: Accepted)

using System;

public class nine
{
	static public void Main(string[] args)
	{
		string input = Console.ReadLine();
		char[] hoge = new char[3];
		int[] num = new int[3];

		for(int i = 0; i < 3; i++)
		{
			hoge[i] = input[i];

			num[i] = (int) char.GetNumericValue(hoge[i]);
		}

		for(int t = 0; t < 3; t++)
		{
			if(num[t] == 1)
			{
				num[t] = 9;

				//Console.Write(num[t]);
			}
			else if(num[t] == 9)
			{
				num[t] = 1;

				//Console.Write(num[t]);
			}
		}


		foreach(int s in num)
		{
			Console.Write(s);
		}

		

		return;
	}
}