diff --git a/.DS_Store b/.DS_Store
new file mode 100644
index 0000000..53fd37e
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diff --git a/day21/README.md b/day21/README.md
index c32b785..ba65dd2 100644
--- a/day21/README.md
+++ b/day21/README.md
@@ -48,3 +48,5 @@ factor of 10 I used to multiply.
 ## Follow up
 
 Floats.. https://docs.python.org/2/tutorial/floatingpoint.html#tut-fp-issues
+
+#test
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diff --git a/day25/README.md b/day25/README.md
index 3ad9fea..43c5b94 100644
--- a/day25/README.md
+++ b/day25/README.md
@@ -34,3 +34,4 @@ So overall `O(n)` runtime, `O(n)` space. Is there a better solution? Maybe.
 
 ## Follow up
 
+#test