*
             ***
            *****
           *******
          *********
         ***********
        *************
        +++++++++++++
        +++++++++++++
        +++++++++++++
        +++++++++++++
        +++++++++++++
        +++++++++++++
        +++++++++++++
       /+++++++++++++\
      /-+++++++++++++-\
     /--+++++++++++++--\
    /---+++++++++++++---\
   /----+++++++++++++----\
  /-----+++++++++++++-----\
 /------+++++++++++++------\