diff --git a/Taschenrechner.java b/Taschenrechner.java
index a0eec0e..1238e1e 100644
--- a/Taschenrechner.java
+++ b/Taschenrechner.java
@@ -161,6 +161,13 @@ public class Taschenrechner {
 			
 			break;
 		}
+		case 11:{
+			System.out.println("Kreis\n");
+			
+			System.out.println("Kreis:");
+			
+			break;
+		}
 		default:
 			throw new IllegalArgumentException("Unexpected value: " + s);
 		}