output_description: Print the maximum possible amount of the allowance.
  
  * * *
input_description: Input is given from Standard Input in the following format:
  
      
      
      A B C
attempt: #!/usr/bin/env python3
  
  import sys
  import math
  from bisect import bisect_right as br
  from bisect import bisect_left as bl
  
  sys.setrecursionlimit(2147483647)
  from heapq import heappush, heappop, heappushpop
  from collections import defaultdict
  from itertools import accumulate
  from collections import Counter
  from collections import deque
  from operator import itemgetter
  from itertools import permutations
  
  mod = 10**9 + 7
  inf = float("inf")
  
  
  def I():
      return int(sys.stdin.readline())
  
  
  def LI():
      return list(map(int, sys.stdin.readline().split()))
  
  
  x = LI()
  x.sort(reverse=1)
  ans = x[0] * 10 + x[1] + x[2]
  print(ans)
  
problem_description: Statement
  
  You have decided to give an allowance to your child depending on the outcome
  of the game that he will play now.
  
  The game is played as follows:
  
    * There are three "integer panels", each with a digit between 1 and 9 (inclusive) printed on it, and one "operator panel" with a `+` printed on it.
    * The player should construct a formula of the form X + Y, by arranging the four panels from left to right. (The operator panel should not be placed at either end of the formula.)
    * Then, the amount of the allowance will be equal to the resulting value of the formula.
  
  Given the values A, B and C printed on the integer panels used in the game,
  find the maximum possible amount of the allowance.
samples: [{"input": "1 5 2", "output": "53\n    \n\nThe amount of the allowance will be 53 when the panels are arranged as `52+1`,\nand this is the maximum possible amount.\n\n* * *"}, {"input": "9 9 9", "output": "108\n    \n\n* * *"}, {"input": "6 6 7", "output": "82"}]