diff --git a/src/Ch00/CodeDemo.cpp b/src/Ch00/CodeDemo.cpp
index 16d96a38..4bbe172e 100644
--- a/src/Ch00/CodeDemo.cpp
+++ b/src/Ch00/CodeDemo.cpp
@@ -1,5 +1,5 @@
 // Complete Guide to C++ Programming Foundations
-// Exercise 00_03
+// Exercise 00_03 with modified further modified more cahnge commit
 // Using the Exercise Files in GitHub Codespaces, by Eduardo Corpeño 
 
 #include <iostream>
diff --git a/src/Ch01/01_02b/CodeDemo.cpp b/src/Ch01/01_02b/CodeDemo.cpp
index 4574c47e..1dfb0717 100644
--- a/src/Ch01/01_02b/CodeDemo.cpp
+++ b/src/Ch01/01_02b/CodeDemo.cpp
@@ -1,3 +1,17 @@
 // Complete Guide to C++ Programming Foundations
 // Exercise 01_02
 // Hello World, by Eduardo Corpeño 
+#include<iostream>
+using namespace std;
+int main() {
+    cout << "Hello World!" << endl;
+    cout<<endl;
+    cout<<endl;
+    cout << "Good By World!" << endl;
+    cout<<endl;
+    cout<<endl;
+    cout << "See you Soon World!" << endl;
+    cout<<endl;
+    cout<<endl;
+    return 0;
+}
\ No newline at end of file
diff --git a/src/Ch09/09_02e/CodeDemo b/src/Ch09/09_02e/CodeDemo
new file mode 100755
index 00000000..2e7d48a9
Binary files /dev/null and b/src/Ch09/09_02e/CodeDemo differ