diff --git a/.gitignore b/.gitignore
index 608626a..0ba4425 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,3 +16,4 @@ Exercise_02/**.txt
 *.idx
 *.log
 *.out
+Exercise_03/.DS_Store
diff --git a/Exercise_03/report.pdf b/Exercise_03/report.pdf
index 5a943fa..3389609 100644
Binary files a/Exercise_03/report.pdf and b/Exercise_03/report.pdf differ