diff --git a/a.txt b/a.txt
index 06dabbc..0080c3e 100644
--- a/a.txt
+++ b/a.txt
@@ -1,2 +1,2 @@
-hello,disen
 lucy,go go
+disen,6666
diff --git a/b.txt b/b.txt
new file mode 100644
index 0000000..e69de29
diff --git a/c.txt b/c.txt
new file mode 100644
index 0000000..e69de29