diff --git a/2024/rust/src/day3.rs b/2024/rust/src/day3.rs
index e2c137b..ce24104 100644
--- a/2024/rust/src/day3.rs
+++ b/2024/rust/src/day3.rs
@@ -3,7 +3,7 @@ pub use crate::prelude::*;
 
 fn main() {
     let input = day_input(3);
-    show_answers(sum_muls(&input), 0);
+    show_answers(sum_muls(&input), sum_muls_with_do_and_dont(&input));
 }
 
 struct MulParser {
@@ -20,7 +20,6 @@ fn sum_muls(input: &str) -> usize {
         let mut right: Option<usize> = None;
         let mut token = &s[0..0];
         for c in s.chars() {
-            println!("c: {c}");
             match c {
                 '0'..='9' => {
                     token = &s[0..token.len() + 1];
@@ -29,7 +28,6 @@ fn sum_muls(input: &str) -> usize {
                     }
                 }
                 ',' => {
-                    println!("token at , {token:?}");
                     if left.is_some() {
                         break;
                     }
@@ -38,7 +36,6 @@ fn sum_muls(input: &str) -> usize {
                     token = &s[0..0];
                 }
                 ')' => {
-                    println!("token at ) {token:?}");
                     if right.is_some() {
                         break;
                     }
@@ -53,7 +50,26 @@ fn sum_muls(input: &str) -> usize {
             sum += left * right;
         }
     }
-    return sum;
+    sum
+}
+
+fn sum_muls_with_do_and_dont(input: &str) -> usize {
+    let mut sum = 0;
+    let mut s = &input[..];
+    let mut mul_rest = true;
+    while let Some(i) = s.find("don't()") {
+        sum += sum_muls(&s[0..i]);
+        s = &s[i..];
+        mul_rest = false;
+        if let Some(i) = s.find("do()") {
+            s = &s[i..];
+            mul_rest = true;
+        }
+    }
+    if mul_rest {
+        sum += sum_muls(s);
+    }
+    sum
 }
 
 #[cfg(test)]