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  • \$\begingroup\$ Does this work when there aren't any numbers? e.g. a? \$\endgroup\$ Commented Feb 12, 2016 at 16:20
  • \$\begingroup\$ @FryAmTheEggman Good question, I guess it will print nothing which in a numeric context is 0 ;-) \$\endgroup\$ Commented Feb 12, 2016 at 16:28