diff --git a/2021/d21/ex1/input b/2021/d21/ex1/input
new file mode 100644
index 0000000..1002be5
--- /dev/null
+++ b/2021/d21/ex1/input
@@ -0,0 +1,2 @@
+Player 1 starting position: 8
+Player 2 starting position: 5