diff --git a/Algo/CM/CM du 27 septembre.md b/Algo/CM/CM du 27 septembre.md
index e3f873e..c4e78b1 100644
--- a/Algo/CM/CM du 27 septembre.md	
+++ b/Algo/CM/CM du 27 septembre.md	
@@ -18,5 +18,8 @@
 - a signature is composed by 
 	- a type (integer, stack, queue, graph)  
 	- an operations (name: profile)
-		- Exemple: ``insert: list x integer x element -> list``
+	- Exemple: 
+		- ``insert: list x integer x element -> list``
+		- ``insert(l, i, e)``
+		- return a result of type `list`
 		- 
\ No newline at end of file