diff --git a/ex03.py b/ex03.py
new file mode 100644
index 00000000..95c9ac12
--- /dev/null
+++ b/ex03.py
@@ -0,0 +1 @@
+print("This is Lab3 FOSS. My name is Gia Hung")
diff --git a/helloworld.py b/helloworld.py
new file mode 100644
index 00000000..97562041
--- /dev/null
+++ b/helloworld.py
@@ -0,0 +1,4 @@
+#!/usr/bin/python3
+print("Hello world")
+print("Hello OSS Development")
+print("Hello CTU - CICT")