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  • \$\begingroup\$ For the purposes of code golf, you don't necessarily have to be nice and clean up after yourself. You can leave off the rm bit from your character count. \$\endgroup\$ Commented Jan 5, 2014 at 20:15
  • \$\begingroup\$ Can't get this to work on TIO (no way I am running it locally!). Downvote I'm afraid \$\endgroup\$ Commented Jul 15, 2024 at 10:00