Index of /utilities/pascal/langton/output
      Name                       Last modified      Size  Description
      Parent Directory                                -   
      la0010772.png              2002-09-13 23:09  1.6K  
      la0024374.png              2002-09-13 23:09  5.1K  
      la0147000.png              2002-09-13 23:09   13K  
      la0318475.png              2002-09-13 23:09   20K  
      la0512616.png              2002-09-13 23:09   27K  
      la9158431.png              2002-09-13 23:09   37K  
The laXXXXXXX.png files are the output from a Langton's Ant one-ant
scenario with a circular boundary.
The numbers in the filenames indicate the time at which the screenshot
was taken, in iterations. So la9158431.png was taken at t=9158431,
nearly ten million iterations after the program was started.