dddddddd                     
                                    tttt                                            d::::::d                     
                                 ttt:::t                                            d::::::d                     
                                 t:::::t                                            d::::::d                     
                                 t:::::t                                            d:::::d                      
 vvvvvvv           vvvvvvv ttttttt:::::ttttttt         eeeeeeeeeeee         ddddddddd:::::d      eeeeeeeeeeee    
  v:::::v         v:::::v  t:::::::::::::::::t       ee::::::::::::ee     dd::::::::::::::d    ee::::::::::::ee  
   v:::::v       v:::::v   t:::::::::::::::::t      e::::::eeeee:::::ee  d::::::::::::::::d   e::::::eeeee:::::ee
    v:::::v     v:::::v    tttttt:::::::tttttt     e::::::e     e:::::e d:::::::ddddd:::::d  e::::::e     e:::::e
     v:::::v   v:::::v           t:::::t           e:::::::eeeee::::::e d::::::d    d:::::d  e:::::::eeeee::::::e
      v:::::v v:::::v            t:::::t           e:::::::::::::::::e  d:::::d     d:::::d  e:::::::::::::::::e 
       v:::::v:::::v             t:::::t           e::::::eeeeeeeeeee   d:::::d     d:::::d  e::::::eeeeeeeeeee  
        v:::::::::v              t:::::t    tttttt e:::::::e            d:::::d     d:::::d  e:::::::e           
         v:::::::v               t::::::tttt:::::t e::::::::e           d::::::ddddd::::::dd e::::::::e          
          v:::::v                tt::::::::::::::t  e::::::::eeeeeeee    d:::::::::::::::::d  e::::::::eeeeeeee  
           v:::v                   tt:::::::::::tt   ee:::::::::::::e     d:::::::::ddd::::d   ee:::::::::::::e  
            vvv                      ttttttttttt       eeeeeeeeeeeeee      ddddddddd   ddddd     eeeeeeeeeeeeee