diff --git a/commun.c b/commun.c
new file mode 100644
index 0000000..c617419
--- /dev/null
+++ b/commun.c
@@ -0,0 +1,4 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "commun.h"
diff --git a/commun.h b/commun.h
new file mode 100644
index 0000000..29ed2c2
--- /dev/null
+++ b/commun.h
@@ -0,0 +1,12 @@
+/*
+  programme : commun.h
+  auteur : Lola Chalmin, Roxane Rossetto
+  date : 13/12/22
+  finalité : SAE 1.02 Algorithme
+*/
+/*
+  Brief : 
+*/
+
+
+
diff --git a/testcommun.c b/testcommun.c
new file mode 100644
index 0000000..c617419
--- /dev/null
+++ b/testcommun.c
@@ -0,0 +1,4 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "commun.h"