diff --git a/diy1.py b/diy1.py
index 0cc3759..ab3b0bf 100644
--- a/diy1.py
+++ b/diy1.py
@@ -11,4 +11,4 @@ insert(诺依,3)
 # 班上准备开始辩论赛，分为红（red）、蓝(blue)组，
 # 请用切片将班级列表的前2名加入到红组，后2名加入到蓝组
 red = students[:2]
-blue = students[:-2]
+blue = students[-3:]