Feedback |  | If you notice incorrect translations in Contester, please let author know.
 |    
 | 
Time limit 2000/4000/4000/4000 ms. Memory limit 65000/65000/65000/65000 Kb. 
Difficulty Alpha
  
From Russian Informatics Olympiads  
Take a number. Print YES, if it is a power of two, NO - otherwise.  
 
 
| 
 input 1  b>
 td>
 | 
 Input 2  b>
 td>  tr> 
8  
 td>
 | 
22  
 td>  tr>  |  
| 
 Output 1  b>
 td>
 | 
 Output 2  b>
 td>  tr> 
YES  
 td>
 | 
NO  
 |   tr>   |   |   
 Для отправки решений необходимо выполнить вход.
  
 |