diff --git a/2024/rust/src/day1.rs b/2024/rust/src/day1.rs
index 98ed71c..1c2b3a6 100644
--- a/2024/rust/src/day1.rs
+++ b/2024/rust/src/day1.rs
@@ -6,6 +6,7 @@ fn main() {
     show_answers(note.smallests_distances(), note.similarity_score());
 }
 
+#[derive(Default)]
 struct HistorianNote {
     left: Vec<i64>,
     right: Vec<i64>,
@@ -14,14 +15,13 @@ struct HistorianNote {
 impl FromStr for HistorianNote {
     type Err = ParseIntError;
     fn from_str(s: &str) -> Result<Self, Self::Err> {
+        let mut result = Self::default();
         let mut line_tokens = s.lines().map(|l| l.split_once("   "));
-        let mut left = Vec::<i64>::new();
-        let mut right = Vec::<i64>::new();
         while let Some((l, r)) = line_tokens.next().flatten() {
-            left.push(l.parse()?);
-            right.push(r.parse()?);
+            result.left.push(l.parse()?);
+            result.right.push(r.parse()?);
         }
-        Ok(Self { left, right })
+        Ok(result)
     }
 }