diff --git a/structure/Graph.java b/structure/Graph.java
index 3092a4f..fde99f8 100644
--- a/structure/Graph.java
+++ b/structure/Graph.java
@@ -26,9 +26,25 @@ public class MyGraph extends SingleGraph{
 		// Assign grid
 		this.grid=grid;
 		
+		int i=0;
+		int ll=this.grid.getGrid().size();
 		// Build node
 		for(Router r : this.grid.getGrid()){
-			this.addNode(r.name);
+			if(i==0){
+				this.addNode(r.name).setAttribute("ui.label", "Source");
+			}
+			else{
+				if(i==ll-1){
+					this.addNode(r.name).setAttribute("ui.label", "Destination");
+
+				}
+				else{
+					this.addNode(r.name);
+
+				}
+
+			}
+			i++;
 			
 		}