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>
#include<string.h>
int main(void)
{
  int n,i,j,keta[4];
  scanf("%d",&n);
  i=1;
  while(n>0){
    keta[i] = n%10;
    if(keta[i]==1){
      keta[i]=9;
    }else if(keta[i]==9){
      keta[i]=1;
    }
    n /= 10;
    i++;
  }
  for(j=i-1;j>0;j--){
    printf("%d",keta[j]);
  }
  return 0;
}