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 Ruby (2.3.3) (judge verdict: Runtime Error)

#include<iostream>
using namespace std;

int main()
{
	char a[3];
	cin >> a[3];
	for (int i = 0; i < 3; i++)
	{
		switch (a[i])
		{
		case 1:a[i] = 9;
			break;
		case 9:a[i] = 1;
			break;
		default:break;
		}
	}
	cout << a[3];
	return 0;
}