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Text File  |  1992-10-18  |  168 b   |  10 lines
  1. sub commas {
  2.     local($_) = @_;
  3.     1 while s/(.*\d)(\d\d\d)/$1,$2/;
  4.     $_;
  5. }
  6. for ($i = 1; $i <= 1e15; $i *= 7) {
  7.     $result = &commas($i);
  8.     print "$result\n";
  9. }
  10.