diff --git a/GorkinMM/1.1.py b/GorkinMM/1.1.py
new file mode 100644
index 0000000..9c5e9b4
--- /dev/null
+++ b/GorkinMM/1.1.py
@@ -0,0 +1,73 @@
+def create_node(name, phone):
+    return {'name': name, 'phone': phone, 'next': None}
+
+def ll_insert(head, name, phone):
+    if head is None:
+        return create_node(name, phone)
+
+    current = head
+    while True:
+        if current['name'] == name:
+            current['phone'] = phone
+            return head
+        
+        if current['next'] is None:
+            break
+        current = current['next']
+
+    current['next'] = create_node(name, phone)
+    return head
+
+def ll_find(head, name):
+    current = head
+    while current:
+        if current['name'] == name:
+            return current['phone']
+        current = current['next']
+    return None
+
+def ll_delete(head, name):
+    if head is None:
+        return None
+
+    if head['name'] == name:
+        return head['next']
+
+    current = head
+    while current['next']:
+        if current['next']['name'] == name:
+            current['next'] = current['next']['next']
+            return head
+        current = current['next']
+
+    return head
+
+def ll_list_all(head):
+    result = []
+    current = head
+    while current:
+        result.append((current['name'], current['phone']))
+        current = current['next']
+    result.sort(key=lambda x: x[0])
+    return result
+
+if __name__ == "__main__":
+    phonebook = None
+
+    phonebook = ll_insert(phonebook, "Коля", "111-11-11")
+    phonebook = ll_insert(phonebook, "Саша", "222-22-22")
+    phonebook = ll_insert(phonebook, "Женя", "333-33-33")
+    
+    print("После вставки:", ll_list_all(phonebook))
+
+    phonebook = ll_insert(phonebook, "Коля", "999-99-99")
+    print("После обновления Коля:", ll_list_all(phonebook))
+
+    print("Поиск Саша:", ll_find(phonebook, "Саша"))
+    print("Поиск Zoro:", ll_find(phonebook, "Zoro"))
+
+    phonebook = ll_delete(phonebook, "Саша")
+    print("Удалили Саша:", ll_list_all(phonebook))
+
+    phonebook = ll_delete(phonebook, "Коля")
+    print("Удалили Коля:", ll_list_all(phonebook))
\ No newline at end of file
diff --git a/GorkinMM/425.md b/GorkinMM/425.md
new file mode 100644
index 0000000..e69de29