output_description: Print the string obtained by replacing every character in S that differs from
  the K-th character of S, with `*`.
  
  * * *
input_description: Input is given from Standard Input in the following format:
  
      
      
      N
      S
      K
attempt: n, s, k = input().split()
  s_list = list(s)
  k = int(k) - 1
  print(n)
  print(s)
  print(k)
  answer_list = []
  if len(s_list) == int(n):
      for s in s_list:
          if not s == s_list[k]:
              s = "*"
          answer_list.append(s)
      answer_list = "".join(answer_list)
      print(answer_list)
  
problem_description: Statement
  
  You are given a string S of length N consisting of lowercase English letters,
  and an integer K. Print the string obtained by replacing every character in S
  that differs from the K-th character of S, with `*`.
samples: [{"input": "5\n    error\n    2", "output": "*rr*r\n    \n\nThe second character of S is `r`. When we replace every character in `error`\nthat differs from `r` with `*`, we get the string `*rr*r`.\n\n* * *"}, {"input": "6\n    eleven\n    5", "output": "e*e*e*\n    \n\n* * *"}, {"input": "9\n    education\n    7", "output": "******i**"}]