diff --git a/2025/uiua/day_03.ua b/2025/uiua/day_03.ua
new file mode 100644
index 0000000..8ca60c1
--- /dev/null
+++ b/2025/uiua/day_03.ua
@@ -0,0 +1,15 @@
+# Experimental!
+Input ← (
+  $
+  ⊜≡⋕ ⊸≠@\n
+)
+
+B ← (
+  ◡(⟜⊏⊢ ⊸⍖↘¯-₁ ◌)
+  ⊃(˜⊂⋅)⊙⋅⋅
+  ⊙(⊃(-₁⋅)∪↘+₁)
+)
+
+N ← 12
+
+/+ ≡(/+×≡˜ⁿ10⇌⇡⊸⧻ ⊙(◌◌) ⍥B ⟜([] N) N) Input