diff --git a/2023/04.cpp b/2023/04.cpp
index a860980..eac9bfb 100644
--- a/2023/04.cpp
+++ b/2023/04.cpp
@@ -48,10 +48,14 @@ auto CountWins(std::vector<Card>& cards) -> std::vector<std::size_t>
 
   for (auto& card : cards)
   {
-    std::sort(card.mine.begin(), card.mine.end());
+    std::sort(card.mine   .begin(), card.mine   .end());
     std::sort(card.winners.begin(), card.winners.end());
-    auto const c = std::set_intersection(card.mine.begin(), card.mine.end(), card.winners.begin(), card.winners.end(), Counter<std::size_t>{});
-    result.push_back(c);
+    auto const counter =
+      std::set_intersection(
+        card.mine   .begin(), card.mine   .end(),
+        card.winners.begin(), card.winners.end(),
+        Counter<std::size_t>{});
+    result.push_back(counter);
   }
 
   return result;