diff --git a/example.ipynb b/example.ipynb
index e6bc6f1..ab94a67 100644
--- a/example.ipynb
+++ b/example.ipynb
@@ -347,6 +347,7 @@
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
    "version": "3.7.6"
+cout<<"""
   }
  },
  "nbformat": 4,