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 (GCC 5.4.1) (judge verdict: Accepted)

#include <stdio.h>
int main(void) {
    int n,i;
    int a[3];
    scanf("%d",&n);
    a[0]=(n/100);
    a[1]=(n%100)/10;
    a[2]=(n%100)-10*a[1];
    for (i=0;i<3;i++) {
        if (a[i]==1) {
            a[i]=9;
        } else {
            a[i]=1;
        }
    }
    printf("%d\n",a[0]*100+a[1]*10+a[2]*1);
    return 0;
}