@@    @      @@   @@  @  
 @     @@     @            
@     @ @    @       @@@@  
@@@@    @    @ @@    @     
@  @    @    @@  @   @     
@  @    @    @   @   @@@   
 @@   @@@@@   @@@       @  
                    @   @  
 @@       @          @@@