diff --git a/计算设备/缓存/84.py b/计算设备/缓存/84.py
index 1eb56ca..962595c 100644
--- a/计算设备/缓存/84.py
+++ b/计算设备/缓存/84.py
@@ -1,4 +1,3 @@
-import re
 from collections import Counter
 from cppy.cp_util import *