                   +=+
                 +=====+
               +==== ====+
             +====     ====+
           +====         ====+
         +====   =======   ====+
       +====   +===+++===+   ====+
==========     ===     ===     ==========
+++++++====    ===+   +===    ====+++++++
        +====   +=======+   ====+
      ==  +====    +++    ====+  ==
      ====  +====       ====+  ====
        ====  +====   ====+  ====
          ====  +=======+  ====
            ====  +===+  ====
              ====     ====
                ====+====
                  =====
                    =