diff --git a/s1n02-accessing-a-series.ipynb b/s1n02-accessing-a-series.ipynb
index 2104bb7..79e161f 100644
--- a/s1n02-accessing-a-series.ipynb
+++ b/s1n02-accessing-a-series.ipynb
@@ -349,7 +349,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "And to use the positional index explicitly, you can use the property `iloc`."
+    "And to use the positional index explicitly, you can use the property `iloc`.The difference in loc and iloc is loc gets rows (or columns) with particular labels from the index wherea iloc gets rows (or columns) at particular positions in the index."
    ]
   },
   {
diff --git a/utils.py b/utils.py
index 9f2b70a..3f81fd0 100644
--- a/utils.py
+++ b/utils.py
@@ -9,4 +9,7 @@ def make_chaos(df, sample_size, columns, fn):
     for col in columns:
         some[col] = some[col].apply(fn)
     # Update the original DataFrame
-    df.update(some)
\ No newline at end of file
+    df.update(some)
+
+
+#13233
\ No newline at end of file