diff --git a/main.py b/main.py
new file mode 100644
index 0000000..f7d1785
--- /dev/null
+++ b/main.py
@@ -0,0 +1 @@
+print('Hello world')
diff --git a/my-jup.ipynb b/my-jup.ipynb
new file mode 100644
index 0000000..e69de29
diff --git a/question.txt b/question.txt
index d82cf4e..5de90b7 100644
--- a/question.txt
+++ b/question.txt
@@ -1,6 +1,5 @@
 1. what is 3 * 3
-______
-
+9
 
 2. what is square root of 9
-______
+3