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Лимит времени 2000/4000/4000/4000 мс. Лимит памяти 65000/65000/65000/65000 Кб.  by Emre Sertel. 
  
Write a program that reads a real value x and calculates the function below: 
 
 
 
Input 
The input contains a real number x and x
(10-16 ≤ x ≤ 1016). 
Output 
The output should contain one number which is the answer to the question. 
 
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Input
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Output
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5 
 | 
0.2 
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-20 | 
-17 |   
 
 Для отправки решений необходимо выполнить вход.
  
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