diff --git a/10/2 - In-n-Out b/10/2 - In-n-Out
new file mode 100644
index 0000000..4c8a87a
--- /dev/null
+++ b/10/2 - In-n-Out	
@@ -0,0 +1 @@
+2 lines: 'not in f', then 'in f'