diff --git a/2023/21/21.py b/2023/21/21.py
new file mode 100644
index 0000000..e69de29
diff --git a/2023/21/input21.txt b/2023/21/input21.txt
new file mode 100644
index 0000000..9400c95
--- /dev/null
+++ b/2023/21/input21.txt
@@ -0,0 +1,131 @@
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diff --git a/01/code.py b/2024/01/code.py
similarity index 100%
rename from 01/code.py
rename to 2024/01/code.py
diff --git a/01/input01.txt b/2024/01/input01.txt
similarity index 100%
rename from 01/input01.txt
rename to 2024/01/input01.txt
diff --git a/02/code.py b/2024/02/code.py
similarity index 100%
rename from 02/code.py
rename to 2024/02/code.py
diff --git a/02/input02.txt b/2024/02/input02.txt
similarity index 100%
rename from 02/input02.txt
rename to 2024/02/input02.txt
diff --git a/03/code.py b/2024/03/code.py
similarity index 100%
rename from 03/code.py
rename to 2024/03/code.py