diff --git a/pomelovsd/HashTable.py b/pomelovsd/HashTable.py
new file mode 100644
index 0000000..a722151
--- /dev/null
+++ b/pomelovsd/HashTable.py
@@ -0,0 +1,3 @@
+def 
+
+def ht_insert(buckets, name, phone):
diff --git a/pomelovsd/LinkedList b/pomelovsd/LinkedList.py
similarity index 100%
rename from pomelovsd/LinkedList
rename to pomelovsd/LinkedList.py
diff --git a/pomelovsd/data_structures.ipynb b/pomelovsd/data_structures.ipynb
index 603b627..ca9bb95 100644
--- a/pomelovsd/data_structures.ipynb
+++ b/pomelovsd/data_structures.ipynb
@@ -15,7 +15,8 @@
     }
    ],
    "source": [
-    " "
+    "import LinkedLists\n",
+    "import HashTable\n"
    ]
   }
  ],