diff --git a/main.cpp b/main.cpp
index fc8276fddc4938777b343127805935e8848f538f..6e26f685053108604e6c16e01540c615ed5a8861 100644
--- a/main.cpp
+++ b/main.cpp
@@ -8,6 +8,6 @@ int main()
     std::cout << "2023/12/01" << endl;
     std::cout << "2023/12/01-2" << endl;
     std::cout << "2023/12/05-2" << endl;
-    std::cout << "2024/01/31-22"<< endl;
+    std::cout << "2024/02/01"<< endl;
     return 0;
 }