diff --git a/main.cpp b/main.cpp
index 0791c2e88f0fc570ff361db50214b678571f1afb..d77516855180767fda9e616bf20ddb1d267e333d 100644
--- a/main.cpp
+++ b/main.cpp
@@ -7,6 +7,6 @@ int main() {
   std::cout << "2023/12/01" << std::endl;
   std::cout << "2023/12/01-2" << std::endl;
   std::cout << "2023/12/05-2" << std::endl;
-  std::cout << "2024/03/11-3" << std::endl;
+  std::cout << "2024/03/11-4" << std::endl;
   return 0;
 }