output_description: Print your answer.
  
  * * *
input_description: Input is given from Standard Input in the following format:
  
      
      
      S
attempt: A = input()
  print(A[:3])
  
problem_description: Statement
  
  When you asked some guy in your class his name, he called himself S, where S
  is a string of length between 3 and 20 (inclusive) consisting of lowercase
  English letters. You have decided to choose some three consecutive characters
  from S and make it his nickname. Print a string that is a valid nickname for
  him.
samples: [{"input": "takahashi", "output": "tak\n    \n\n* * *"}, {"input": "naohiro", "output": "nao"}]