diff --git a/VolkovVA/cod.py b/VolkovVA/cod.py
index e69de29..7495326 100644
--- a/VolkovVA/cod.py
+++ b/VolkovVA/cod.py
@@ -0,0 +1,20 @@
+import random as rnd
+
+def ll_insert(head, name, phone):
+    new_node = {'name': name, 'phone': phone, 'next': None}
+    
+    if head is None:
+        return new_node
+    
+    
+    current = head
+    while current is not None:
+        if current['name'] == name:
+            current['phone'] = phone
+            return head
+        current = current['next']
+       
+        
+    new_node['next'] = head
+    return new_node
+