diff --git a/src/BodyForceTreeMap.java b/src/BodyForceTreeMap.java
index 752861f..1d250bc 100644
--- a/src/BodyForceTreeMap.java
+++ b/src/BodyForceTreeMap.java
@@ -86,13 +86,14 @@ public class BodyForceTreeMap {
         return this.size;
     }
 
-    private String toString(BodyForceTreeMapItem item, String indent) {
+    private String toString(BodyForceTreeMapItem item) {
+        String s = "";
         if (item == null) {
-            return "";
+            return s;
         }
-        String s = String.format("%s{%s: %s}\n", indent, item.key(), item.value());
-        s += this.toString(item.left(), indent + "| ");
-        s += this.toString(item.right(), indent + "| ");
+        s += this.toString(item.right());
+        s += String.format("{%s: %s}\n", item.key(), item.value());
+        s += this.toString(item.left());
         return s;
     }
 
@@ -101,6 +102,6 @@ public class BodyForceTreeMap {
      * descending according to the mass of the bodies.
      */
     public String toString() {
-        return toString(root, "");
+        return toString(root);
     }
 }