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