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 Python (3.4.3) (judge verdict: Runtime Error)

a=str(input())
b=int(a[0])
c=int(a[1])
d=int(a[2])
if b==1:
  b="9"
elif b==9:
  b="1"
if c==1:
  c="9"
elif c==9:
  c="1"
if d==1:
  d="9"
elif d==9:
  d=="1"
e=int(b+c+d)
print(e)