diff --git a/KuzminskiyAA/Task 1/Dogs/Data/main.py b/KuzminskiyAA/Task 1/Dogs/Data/1.py
similarity index 70%
rename from KuzminskiyAA/Task 1/Dogs/Data/main.py
rename to KuzminskiyAA/Task 1/Dogs/Data/1.py
index 148494c..f9d5525 100644
--- a/KuzminskiyAA/Task 1/Dogs/Data/main.py	
+++ b/KuzminskiyAA/Task 1/Dogs/Data/1.py	
@@ -1,22 +1,22 @@
+import time
+import random
+import csv
+import matplotlib.pyplot as plt
+import numpy as np
+
 def ll_insert(head, name, phone):
-    """Вставка в конец списка. Возвращает голову."""
     new_node = {'name': name, 'phone': phone, 'next': None}
-    
     if head is None:
         return new_node
-    
     current = head
-    while current['next']:
+    while current:
         if current['name'] == name:
             current['phone'] = phone
             return head
+        if current['next'] is None:
+            current['next'] = new_node
+            return head
         current = current['next']
-    
-    if current['name'] == name:
-        current['phone'] = phone
-    else:
-        current['next'] = new_node
-    
     return head
 
 def ll_find(head, name):
@@ -30,24 +30,20 @@ def ll_find(head, name):
 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):
-    entries = []
+    records = []
     current = head
     while current:
-        entries.append((current['name'], current['phone']))
+        records.append((current['name'], current['phone']))
         current = current['next']
-    entries.sort(key=lambda x: x[0])
-    return entries
\ No newline at end of file
+    return sorted(records, key=lambda x: x[0])
\ No newline at end of file