diff --git a/day04.ua b/day04.ua
index a89c2eb..a2e4afa 100644
--- a/day04.ua
+++ b/day04.ua
@@ -14,11 +14,7 @@ PartIPost ← /+
 PartIIPre ← /+♭⊞=Parse
 PartIIPost ← (
   ⊃(∘|+1⊚⧻)
-  ⊙⊙0
-  ∧(
-    ⊃(⊙⊢|⋅(↘1)|⋅(+⊢))
-    ⬚0+×+1⊚
-  )
+  ∧(⬚0+×+1⊚⊃(⊙⊢|⋅(↘1)|⋅(+⊢)))⊙⊙0
   ;
 )