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