text: """
  In this task, we would like for you to appreciate the usefulness of the groupby() function of itertools . To read more about this function, Check this out .
  
  You are given a string
  . Suppose a character '' occurs consecutively times in the string. Replace these consecutive occurrences of the character '' with
  
  in the string.
  
  For a better understanding of the problem, check the explanation.
  
  Input Format
  
  A single line of input consisting of the string
  
  .
  
  Output Format
  
  A single line of output consisting of the modified string.
  
  Constraints
  
  All the characters of
  denote integers between and
  
  .
  
  Sample Input
  
  1222311
  
  Sample Output
  
  (1, 1) (3, 2) (1, 3) (2, 1)
  
  Explanation
  
  First, the character
  occurs only once. It is replaced by . Then the character occurs three times, and it is replaced by
  
  and so on.
  
  Also, note the single space within each compression and between the compressions.
  
  """
  from itertools import groupby
  print(*[(len(list(c)), int(k)) for k, c in groupby(input())])
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  