output_description: Print the integer obtained by replacing each occurrence of `1` with `9` and
  each occurrence of `9` with `1` in n.
  
  * * *
input_description: Input is given from Standard Input in the following format:
  
      
      
      n
attempt: import sys, re
  from math import ceil, floor, sqrt, pi, factorial, gcd
  from copy import deepcopy
  from collections import Counter, deque
  from heapq import heapify, heappop, heappush
  from itertools import accumulate, product, combinations, combinations_with_replacement
  from bisect import bisect, bisect_left
  from functools import reduce
  from decimal import Decimal, getcontext
  
  
  # input = sys.stdin.readline
  def i_input():
      return int(input())
  
  
  def i_map():
      return map(int, input().split())
  
  
  def i_list():
      return list(i_map())
  
  
  def i_row(N):
      return [i_input() for _ in range(N)]
  
  
  def i_row_list(N):
      return [i_list() for _ in range(N)]
  
  
  def s_input():
      return input()
  
  
  def s_map():
      return input().split()
  
  
  def s_list():
      return list(s_map())
  
  
  def s_row(N):
      return [s_input for _ in range(N)]
  
  
  def s_row_list(N):
      return [s_list() for _ in range(N)]
  
  
  def Yes():
      print("Yes")
  
  
  def No():
      print("No")
  
  
  def YES():
      print("YES")
  
  
  def NO():
      print("NO")
  
  
  def lcm(a, b):
      return a * b // gcd(a, b)
  
  
  sys.setrecursionlimit(10**6)
  INF = float("inf")
  MOD = 10**9 + 7
  
  
  def main():
      n = i_input()
  
      str_n = str(n)
  
      for i in range(3):
          if str_n[i] == "1":
              print(9, end="")
          else:
              print(1, end="")
  
      print()
  
  
  if __name__ == "__main__":
      main()
  
problem_description: 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.
samples: [{"input": "119", "output": "991\n    \n\nReplace the `9` in the ones place with `1`, the `1` in the tens place with `9`\nand the `1` in the hundreds place with `9`. The answer is `991`.\n\n* * *"}, {"input": "999", "output": "111"}]