output_description: Height of the 1st mountain
      Height of the 2nd mountain
      Height of the 3rd mountain
input_description: Height of mountain 1
      Height of mountain 2
      Height of mountain 3
       .
       .
      Height of mountain 10
attempt: mountain = sorted([int(input()) for _ in range(10)], reverse=True)
  ans = mountain[:3]
  print("\n".join(map(str, ans)))
  
problem_description: List of Top 3 Hills
  
  There is a data which provides heights (in meter) of mountains. The data is
  only for ten mountains.
  
  Write a program which prints heights of the top three mountains in descending
  order.
samples: [{"input": "1819\n    2003\n    876\n    2840\n    1723\n    1673\n    3776\n    2848\n    1592\n    922", "output": "3776\n    2848\n    2840"}, {"input": "100\n    200\n    300\n    400\n    500\n    600\n    700\n    800\n    900\n    900", "output": "900\n    900\n    800"}]