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