Added solution using loop.

Author Pascal J. Bourguignon <pjb@informatimago.com>
Author date 2017-04-11 21:26:51
Author local date 2017-04-11 23:26:51 +0200
Committer Pascal J. Bourguignon <pjb@informatimago.com>
Committer date 2017-04-11 21:26:51
Committer local date 2017-04-11 23:26:51 +0200
Commit 34f421cf6f5d7b15c0f2a7bd5ce58fd024555bfc
Tree 1d3a1bf89a70f7fe98583befcaee1a519960a76a
Parent d1fc0cd6d2ae9c92bdc756ed09bff87ce0efc03b
Added solution using loop.
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