ffffffffffff        
      fffjjjjjjjjfff       
    fffjjjjjjjjjjjjfff     
   fffjjjjjjjjjjjjjjjff    
  fffjjjHHffffffffffjjff   
 fffjjfHHfJHffIffHHffjjff  
 ffjjfHHHHHffffxxIHHffjjff 
 ffjffxxHHHHxffHHxHffxfjff 
ffffffHxHHHHHHfffHHHffffff 
fffffffHHHIHHffffJfffffffff
fffffxfHHfffxfffJfJHHfxffff
ffffIfHHJffffxffHHfHHHfffff
fffffIHHJffffffxHHffHffffff
fffffHHHHfIfHHHHHHHHJHfffff
fffffHHxfffIIHHHHHHHJfffff 
 ffffffHffffHHHHxfHJJfffjf 
 fjfffHHfffxfffHHHffffffj  
  jjfffffJffffIfHHfffffj   
   jjffffffffIfHHfffffj    
    jjffffffffffffffjj     
     jjjffffffffffjjj      
       jjjjjjjjjjjj        
          jjjjjj