diff --git a/main.py b/main.py
index 1a59ddfa2407c930e04c6a1caf884f896d105da4..8016ced6abb21a65e3baaea91cbb017cc53acc73 100644
--- a/main.py
+++ b/main.py
@@ -5,7 +5,10 @@
 
 class TabletteChocolat:
     def __init__(self, m: int, n: int):
+        if not (isinstance(m, int) and isinstance(n, int)):
+            raise TypeError('given values must be integers')
         self.m = m
         self.n = n
 
-
+A = TabletteChocolat(1, 2)
+B = TabletteChocolat(1, 'ouioui')