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+## Day 1
+Day 1 is pretty straight forward.
+
+### Part One
+
+Part one is just the sum of all frequencies. Nothing more to say.
+
+### Part Two
+In `found` we keep a list of all frequencies.
+we keep our current frequency in `freq` and iterate over the change list
+always adding our current frequency to the list and look out for the
+current frequency.
+