___________________$___________________
                      __________________$$$__________________
                      $_________________$$$________________$_
                      _$$______________$$$$$_____________$$__
                      __$$$____________$$$$$___________$$$___
                      ___$$$$$_________$$$$$________$$$$$____
                      ____$$$$$$$______$$$$$_____$$$$$$$_____
                      ______$$$$$$$____$$$$$___$$$$$$$_______
                      _________$$$$$____$$$___$$$$$__________
                      $$$$$$$______$$$_______$$$______$$$$$$$
                      ____$$$$$$$$____$$_$_$$____$$$$$$$$____
                      ________$$$$$$$$$_$$$_$$$$$$$$$________
                      _______________$$$_$_$$$_______________
                      ___________$$$$$___$___$$$$$___________
                      ___________________$___________________