diff --git a/lab4/zad2/src/main.rs b/lab4/zad2/src/main.rs
index c9394da..8774c1b 100644
--- a/lab4/zad2/src/main.rs
+++ b/lab4/zad2/src/main.rs
@@ -101,17 +101,17 @@ fn main() -> io::Result<()> {
         if rand_heights_clone.get(&n).is_some() {
             return;
         }
-        println!("{}: starting n: {n}", current_thread_index().unwrap());
+        println!("{thread}: starting n: {n}", thread = current_thread_index().unwrap());
 
         asc_results_clone.insert(n, vec![]);
         asc_heights_clone.insert(n, vec![]);
         rand_results_clone.insert(n, vec![]);
         rand_heights_clone.insert(n, vec![]);
 
-        let mut asc = BinarySearchTree::new(n as usize);
-        let mut rand = BinarySearchTree::new(n as usize);
+        (1..=m).into_par_iter().for_each(|k| {
+            println!("{thread}: starting iteration {k}/{m} for n: {n}", thread = current_thread_index().unwrap());
+            let mut asc = BinarySearchTree::new(n as usize);
 
-        for _ in 0..m {
             for i in gen_asc(n) {
                 asc.insert(i);
                 asc_heights_clone.get_mut(&n).unwrap().push(asc.height());
@@ -123,6 +123,8 @@ fn main() -> io::Result<()> {
 
             asc_results_clone.get_mut(&n).unwrap().push(asc.stats.clone());
 
+            let mut rand = BinarySearchTree::new(n as usize);
+
             for i in gen_rand(n) {
                 rand.insert(i);
                 rand_heights_clone.get_mut(&n).unwrap().push(rand.height());
@@ -133,8 +135,9 @@ fn main() -> io::Result<()> {
             }
 
             rand_results_clone.get_mut(&n).unwrap().push(rand.stats.clone());
-        }
-        println!("{}: finished n: {n}", current_thread_index().unwrap());
+            println!("{thread}: finished iteration {k}/{m} for n: {n}", thread = current_thread_index().unwrap());
+        });
+        println!("{thread}: finished n: {n}", thread = current_thread_index().unwrap());
     });
 
     let asc_comp_averages = comp_avg(&asc_results);