diff --git a/main.py b/main.py
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index 0000000..7fcc8dc
--- /dev/null
+++ b/main.py
@@ -0,0 +1,23 @@
+
+# Function `print` prints the values to a stream, or to sys.stdout by default.
+print("Hello, World");
+
+worldStr: str = "World";
+
+print("Hello, " + worldStr);
+
+
+# By using %s, we can do string formating and inject a variable
+# It is cleaner and more readable than using string concatenation
+print("Hello, %s" % worldStr);
+
+# The line below would cause an error
+# %i expects a numerical value to be supplied
+# print("Hello, %i" % worldStr);
+
+
+# This script can be run simply by typing
+# `python3 main.py` in your terminal
+# Note that you will need to have python3 installed on your system
+
+# To enable type annotation check, you need to install `mypy`.
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