diff --git a/.directory b/.directory
new file mode 100644
index 0000000..5f8ecac
--- /dev/null
+++ b/.directory
@@ -0,0 +1,6 @@
+[Dolphin]
+Timestamp=2019,2,14,8,39,1
+Version=3
+
+[Settings]
+HiddenFilesShown=true
diff --git a/.~lock.Chapter 03 Assigned Problems.odt# b/.~lock.Chapter 03 Assigned Problems.odt#
deleted file mode 100644
index e347e15..0000000
--- a/.~lock.Chapter 03 Assigned Problems.odt#	
+++ /dev/null
@@ -1 +0,0 @@
-,tschmidt,debian00.cis.com,12.02.2019 09:14,file:///home/tschmidt/.config/libreoffice/4;
\ No newline at end of file
diff --git a/Chapter 03 Assigned Problems.odt b/Chapter 03 Assigned Problems.odt
index 3d1ec1c..a4e730a 100644
Binary files a/Chapter 03 Assigned Problems.odt and b/Chapter 03 Assigned Problems.odt differ