diff --git a/module2/exo4/base.csv b/module2/exo4/base.csv
new file mode 100644
index 0000000000000000000000000000000000000000..a5bfbc57a765c81c96e227ff903569327aaa504b
--- /dev/null
+++ b/module2/exo4/base.csv
@@ -0,0 +1 @@
+6,8,9,6,4,3,2,3,6,6
\ No newline at end of file
diff --git a/module2/exo4/chaps.csv b/module2/exo4/chaps.csv
new file mode 100644
index 0000000000000000000000000000000000000000..77ee74124f8b9493ca2d55489751241a5ce48118
--- /dev/null
+++ b/module2/exo4/chaps.csv
@@ -0,0 +1 @@
+2,3,4,5,6,7,8,9,10,11
\ No newline at end of file
diff --git a/module2/exo4/supp.csv b/module2/exo4/supp.csv
new file mode 100644
index 0000000000000000000000000000000000000000..ad04c9b37bbcbf1981fb6fc4314f3969d0779fd4
--- /dev/null
+++ b/module2/exo4/supp.csv
@@ -0,0 +1 @@
+20,28,13,15,14,15,4,4,11,3