diff --git a/my_script.py b/my_script.py
index a4ad70d..86379af 100644
--- a/my_script.py
+++ b/my_script.py
@@ -1,5 +1,9 @@
 def main():
     print("Hello world!")
+    # арифметика
+    a = 1
+    b = 2
+    c = a+b
     d = a - b