diff --git a/maths/iterative_pair.py b/maths/iterative_pair.py
index 1f9b559fa..7ac1b79dc 100644
--- a/maths/iterative_pair.py
+++ b/maths/iterative_pair.py
@@ -1,3 +1,5 @@
+"""Count equal element pairs in the given array"""
+
 import doctest
 from collections import Counter