diff --git a/komissarovgo/docs/data/CodePhoneBook.py b/komissarovgo/docs/data/CodePhoneBook.py
index 167b324..396dec9 100644
--- a/komissarovgo/docs/data/CodePhoneBook.py
+++ b/komissarovgo/docs/data/CodePhoneBook.py
@@ -180,4 +180,119 @@ def bst_list_all(root):
             inorder_traversal(node['right'])
     
     inorder_traversal(root)
-    return records
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+    return records
+
+
+
+#EXPERIMENTAL PART
+
+# 1. Test data generation
+
+def generate_records(count=10000):
+    
+    records = []
+    for i in range(count):
+        name = f"User_{i:05d}"
+        phone = f"+7-{random.randint(100,999)}-{random.randint(100,999)}-{random.randint(1000,9999)}"
+        records.append((name, phone))
+    
+    shuffled = records.copy()
+    random.shuffle(shuffled)
+    sorted_records = sorted(records, key=lambda x: x[0])
+    
+    return shuffled, sorted_records
+
+
+
+# 2. Timing
+
+def measure_insertion(structure_name, records):
+    
+    times = []
+    filled_structure = None
+    
+    for run in range(5):
+        if structure_name == "linked_list":
+            structure = None
+        elif structure_name == "hash_table":
+            structure = ht_create(1000)
+        elif structure_name == "bst":
+            structure = None
+        
+        start = time.perf_counter()
+        
+        for name, phone in records:
+            if structure_name == "linked_list":
+                structure = ll_insert(structure, name, phone)
+            elif structure_name == "hash_table":
+                ht_insert(structure, name, phone)
+            elif structure_name == "bst":
+                structure = bst_insert(structure, name, phone)
+        
+        end = time.perf_counter()
+        times.append(end - start)
+        
+        if run == 4:
+            filled_structure = structure
+    
+    return times, filled_structure
+
+
+def measure_search(structure_name, structure, search_names):
+    
+    times = []
+    
+    for run in range(5):
+        start = time.perf_counter()
+        
+        for name in search_names:
+            if structure_name == "linked_list":
+                ll_find(structure, name)
+            elif structure_name == "hash_table":
+                ht_find(structure, name)
+            elif structure_name == "bst":
+                bst_find(structure, name)
+        
+        end = time.perf_counter()
+        times.append(end - start)
+    
+    return times
+
+
+def measure_deletion(structure_name, original_structure, delete_names):
+    
+    times = []
+    
+    for run in range(5):
+        if structure_name == "linked_list":
+            all_records = ll_list_all(original_structure)
+            test_structure = None
+            for name, phone in all_records:
+                test_structure = ll_insert(test_structure, name, phone)
+        
+        elif structure_name == "hash_table":
+            all_records = ht_list_all(original_structure)
+            test_structure = ht_create(1000)
+            for name, phone in all_records:
+                ht_insert(test_structure, name, phone)
+        
+        elif structure_name == "bst":
+            all_records = bst_list_all(original_structure)
+            test_structure = None
+            for name, phone in all_records:
+                test_structure = bst_insert(test_structure, name, phone)
+        
+        start = time.perf_counter()
+        
+        for name in delete_names:
+            if structure_name == "linked_list":
+                test_structure = ll_delete(test_structure, name)
+            elif structure_name == "hash_table":
+                ht_delete(test_structure, name)
+            elif structure_name == "bst":
+                test_structure = bst_delete(test_structure, name)
+        
+        end = time.perf_counter()
+        times.append(end - start)
+    
+    return times
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