diff --git a/CoffeeVendingMachines/Model.cs b/CoffeeVendingMachines/Model.cs
index 0080834..ed39f95 100644
--- a/CoffeeVendingMachines/Model.cs
+++ b/CoffeeVendingMachines/Model.cs
@@ -1,6 +1,14 @@
-namespace CoffeeVendingMachines;
+namespace CoffeeVendingMachines;
 
 public class Model
 {
-    
+    enum CoinType
+    {
+        Cent05
+        Cent10
+        Cent20
+        Cent50
+        Euro01
+        Euro02
+    }
 }