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++14 (Clang 3.8.0) (judge verdict: Accepted)

#include<iostream>
#include<cmath>
#include<string>
#include<cstring>
using namespace std;


int main()
{
	string a;
	cin >> a;
	for (int i = 0; i < 3; i++) {
		if (a.substr(i, 1) == "1")a.replace(i, 1, "9");
		else a.replace(i, 1, "1");

	}
	cout<<a<<endl;
    return 0;
}