==========================
                  =                        =
        ====   ###N###   ====              =
        =  =   #     #   =  =              =
       =N= =  =N=   =N=  = =N=             =
       = = =  = =   = =  = = =       ##N====
       === =  ===   ===  = ===       # =
        =  =   =     =   =  =        # =======================
        ====   =     =   ====        #
           =   =     =   =           #
          ===  =     =  ===          #
          = =  =     =  = =          #
          ===  =     =  =N=          #
           =   =     =   =           #
           =====     =====           #
               ===N===               #
                  #                  #
                  #                  #
                  ####################