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