diff --git a/README.md b/README.md
index 94f1ab0..1311641 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,8 @@ library. The sample input files are not original ones, but created by myself.
 
 | Year |                                Stars                                |                          Days completed                          | 
 |:----:|:-------------------------------------------------------------------:|:----------------------------------------------------------------:|
-| 2023 | ![](https://img.shields.io/badge/2023%20stars%20⭐-50-yellow)  | ![](https://img.shields.io/badge/2023%20days%20completed-25-red)  |
+| 2024 | ![](https://img.shields.io/badge/2024%20stars%20⭐-0-yellow)  | ![](https://img.shields.io/badge/2024%20days%20completed-0-red)  |
+| 2023 | ![](https://img.shields.io/badge/2023%20stars%20⭐-50-yellow) | ![](https://img.shields.io/badge/2023%20days%20completed-25-red) |
 | 2022 | ![](https://img.shields.io/badge/2022%20stars%20⭐-50-yellow) | ![](https://img.shields.io/badge/2022%20days%20completed-25-red) |
 | 2021 | ![](https://img.shields.io/badge/2021%20stars%20⭐-50-yellow) | ![](https://img.shields.io/badge/2021%20days%20completed-25-red) |
 | 2020 | ![](https://img.shields.io/badge/2020%20stars%20⭐-6-yellow)  | ![](https://img.shields.io/badge/2020%20days%20completed-3-red)  |
diff --git a/src/2024/01/sample_input.txt b/src/2024/01/sample_input.txt
new file mode 100644
index 0000000..30404ce
--- /dev/null
+++ b/src/2024/01/sample_input.txt
@@ -0,0 +1 @@
+TODO
\ No newline at end of file