add erin's puzzle and its solution
authordaniel watson <ozzloy@gmail.com>
Thu, 17 May 2018 00:54:38 +0000 (17:54 -0700)
committerdaniel watson <ozzloy@gmail.com>
Thu, 17 May 2018 00:54:38 +0000 (17:54 -0700)

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