______   ______
            / ____/  / ____/
vorticity. / /      / /
          / /___   / /___
          \____/   \____/

             contains
      ______            ______
     / ____/           / ____/
    / /               / /
   / /___            / /___
   \____/  ode  for  \____/  omputers

        (no humans allowed!)