diff --git a/src/net/bohush/sorting/BubbleSortPanel.java b/src/net/bohush/sorting/BubbleSortPanel.java
index ee3221c..13a8219 100644
--- a/src/net/bohush/sorting/BubbleSortPanel.java
+++ b/src/net/bohush/sorting/BubbleSortPanel.java
@@ -30,9 +30,9 @@ public void run() {
 					Thread.sleep(4 * sleepTime);
 					if (list[i] > list[i + 1]) {
 						redColumn = i + 1;
-						int temp = list[i];
-						list[i] = list[i + 1];
-						list[i + 1] = temp;
+						list[i] = list[i] + list[i + 1];
+						list[i+1] = list[i] - list[i + 1];
+						list[i] = list[i] - list[i + 1];
 						repaint();
 						Thread.sleep(4 * sleepTime);
 						needNextPass = true;