diff --git a/.gradle/checksums/checksums.lock b/.gradle/checksums/checksums.lock
index 0e52686..1f4c683 100644
Binary files a/.gradle/checksums/checksums.lock and b/.gradle/checksums/checksums.lock differ
diff --git a/.gradle/checksums/md5-checksums.bin b/.gradle/checksums/md5-checksums.bin
index e1e2dd2..5892f88 100644
Binary files a/.gradle/checksums/md5-checksums.bin and b/.gradle/checksums/md5-checksums.bin differ
diff --git a/.gradle/checksums/sha1-checksums.bin b/.gradle/checksums/sha1-checksums.bin
index e5ecaa9..eca5579 100644
Binary files a/.gradle/checksums/sha1-checksums.bin and b/.gradle/checksums/sha1-checksums.bin differ
diff --git a/.idea/Mid-Wrap-Up.iml b/.idea/Mid-Wrap-Up.iml
new file mode 100644
index 0000000..d6ebd48
--- /dev/null
+++ b/.idea/Mid-Wrap-Up.iml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/src/main/java/Lecture4Exercises.java b/src/main/java/Lecture4Exercises.java
index 868721c..1f5d72c 100644
--- a/src/main/java/Lecture4Exercises.java
+++ b/src/main/java/Lecture4Exercises.java
@@ -49,4 +49,6 @@ public boolean isPalindrome(String line) {
     public char[][] dotPlot(String str1, String str2) {
         return null;
     }
+    //jjjjjjj
 }
+