################***** ****** * ****  *  *                 
#<.#..)..#.)'..#__*,,+G,K , *,,,, hhhhh  D                
#..').#..'..#..+,J+, * , ** *,**  hh,hh   G               
#..#####'#####'#__****K,,+ss*,*, **hhh  *                 
#..####..#...#(#***,,* * *ss+ * *,***+*                   
#..#__####..##.#≈ ≈,c ,,* +*** , ,*@ ,  ,                 
#..#_..__##'#..+ ≈≈ ,+,y ,,,,,*, ,    ,**                 
#⌠⌠#_.∩..5'..._#≈ ≈,c*,,   ,,,+,, , **, A      4          
####_K.._##_(#+#*+*****+*** 9,* , ,2*, *     m e          
*, #_____###(#,*,,,,***P+, ,,,*** +  ,                    
***#######*#(#** + **,** ,*,,*** , * ,                    
* ,,, ,  ,+$.$+,,T,,+,∩**s*,,***   *   ,x P y             
***+++ ***#$.$# *********,*  *,,  ,*,***x M         D     
*,,G,,,,**##.##* ,,,,,,**s**,*,, ,,     x    y            
*G ,, ,,G*,#+#,*x,,,,,,,+,****,,,,,,  , x   yy        D   
*,  ,,,G,*,* *,*++ *** **  ,,+,,,,,,*                     
*G,,,,,,G* , , *,,JJ ,,G* *****,,   *, ,                  
*,,G,,*,,**** **,JJ,,,,*+s*,,,** *   ,                    
*GG, ,,G,**nnn,,,,,J,,≈**** ,,,,C ,  *                    
*,, ,,G,,**nn,,J ,,,,≈≈**  C , ,***  , ,                 9
*,,, ,, G***n ,,n ,≈≈≈*  ,,,,C,* , ,,,              D     
* *++++*** *** ,≈≈ ≈* * * ,C ,**  ,,,,                    
*∩,,, ,,∩* **+  **  +****,,,,,*, ,,, ,                    
* , ,,,, **∩ ********∩ * ********** ,&,                   
*∩  ,, ,∩** ∩∩∩∩∩∩∩∩∩∩***≈≈≈≈≈ ≈ d ,                      
**** ***** ****** *****  *** *****  ,, ,,         e       
                        *,,,  +,  ,, ,, ,                 
                        ********    *