commit 76c0b7037cc0cd0801e76221228122e5dc690daf
Author: chnjinlei <240337375@qq.com>
Date:   Thu Jul 9 03:25:05 2026 +0000

    Initial commit

diff --git a/README.md b/README.md
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index 0000000..a590900
--- /dev/null
+++ b/README.md
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+# 640
+
+Main repository for 640
\ No newline at end of file