diff --git a/bb.py b/bb.py
new file mode 100644
index 0000000..ed9baeb
--- /dev/null
+++ b/bb.py
@@ -0,0 +1,3 @@
+a=25
+b=20
+print (a+b)
\ No newline at end of file
diff --git a/test.py b/test.py
index 59bcf23..e9e1d25 100644
--- a/test.py
+++ b/test.py
@@ -1,3 +1,3 @@
 a=25
-b=20
-print (a+b)
+b=200
+print (a-b)