diff --git a/Robbie-Management-System/src/domain/Robotermodell.java b/Robbie-Management-System/src/domain/Robotermodell.java
index 9c761e1..c72248c 100644
--- a/Robbie-Management-System/src/domain/Robotermodell.java
+++ b/Robbie-Management-System/src/domain/Robotermodell.java
@@ -1,5 +1,7 @@
 package domain;
 
+import java.util.Arrays;
+
 import exceptions.RobotException;
 import roboterSystem.Robot;
 
@@ -48,8 +50,21 @@ public abstract class Robotermodell implements Robot {
 
 	@Override
 	public String speak(int[] zahlen) throws RobotException {
-		// TODO Auto-generated method stub
-		return null;
+		String hilfszeichen;
+		StringBuilder sb = new StringBuilder();
+		
+		if (this instanceof C3PO) {
+			hilfszeichen = ";";
+		} else {
+			hilfszeichen = ",";
+		}
+		
+		Arrays.stream(zahlen)
+		.forEach(z -> sb.append(z + hilfszeichen + " "));
+		
+		sb.setLength(sb.length() - 2);
+		
+		return sb.toString();
 	}
 	
 }