MANDELBROT_C:
  C version
  Compute the Mandelbrot set and create a plot file.

  X range: [ -1, -0.6 ]
  Y range: [ 0, 0.4 ]
  Xnum = 1000 x Ynum = 1000 = 1000000 Pixels
  Maximum number of iterations = 200

  Compute time:
  Wallclock: 4.97 sec.
        CPU: 4.96 sec.

  Plot saved in file 'mandelbrot_c.pgm'

MANDELBROT_C:
  Normal end of execution.