auto save

diy1.py

-list1 = []
+import time
+start_time=time.time()
+alist1 = []
 for a in range(0, 1000):
     for b in range(0, 1000):
-        list1.insert(0, 0)
\ No newline at end of file
+        list1.insert(0, 0)
+end_time=time.time()
+print(end_time-start_time)