diff --git a/PizzaStore/pizza_store.cpp b/PizzaStore/pizza_store.cpp
index 774e7fb..83a8223 100644
--- a/PizzaStore/pizza_store.cpp
+++ b/PizzaStore/pizza_store.cpp
@@ -54,6 +54,12 @@ class SimplePizzaFactory {
     }
 };
 
+// Problem:
+// nyStore -> NYPizzaFactory
+// chicagoStore -> ChicagoPizzaFactory
+
+// every store has it own sequence of pizza recipe
+
 class PizzaStore {
 public:
     PizzaStore(SimplePizzaFactory* factory)