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  1. or download this
    #!/usr/bin/perl
    $| = 1;
    ...
    print "</textarea><br>";
    print "Completed Test!\n";
    exit(0);
    
  2. or download this
    print "\b\b\b\b" if ($count == 4);
    $count = 0 if ($count == 4);
    
  3. or download this
    if ($count == 4) { $count = 0; print "\b\b\b\b"; }