diff --git a/CM2005 Object Oriented Programming/Topic 5/5.1.15/MerkelMain.cpp b/CM2005 Object Oriented Programming/Topic 5/5.1.15/MerkelMain.cpp
index 0a0e42f..4aea43a 100644
--- a/CM2005 Object Oriented Programming/Topic 5/5.1.15/MerkelMain.cpp	
+++ b/CM2005 Object Oriented Programming/Topic 5/5.1.15/MerkelMain.cpp	
@@ -83,7 +83,16 @@ void MerkelMain::enterAsk()
                 tokens[0], 
                 OrderBookType::ask 
             );
-            orderBook.insertOrder(obe);
+            if(wallet.canFulfillOrder(obe))
+            {
+                std::cout << "Wallet looks good. " << std::endl;
+                orderBook.insertOrder(obe);
+            }
+            else
+            {
+                std::cout << "Wallet has insufficient asks" << std::endl;
+            }
+            
         }catch (const std::exception& e)
         {
             std::cout << " MerkelMain::enterAsk Bad input " << std::endl;
diff --git a/CM2005 Object Oriented Programming/Topic 5/5.1.15/Wallet.cpp b/CM2005 Object Oriented Programming/Topic 5/5.1.15/Wallet.cpp
index 479f508..b4addab 100644
--- a/CM2005 Object Oriented Programming/Topic 5/5.1.15/Wallet.cpp	
+++ b/CM2005 Object Oriented Programming/Topic 5/5.1.15/Wallet.cpp	
@@ -1,5 +1,6 @@
 #include "Wallet.h"
 #include "CSVReader.h"
+#include <iostream>
 
 Wallet::Wallet()
 {
@@ -78,6 +79,7 @@ bool Wallet::canFulfillOrder(OrderBookEntry order)
   {
     double amount = order.amount;
     std::string currency = currs[0];
+    std::cout << "Wallet::canFulfillrder " << currency << ":" <<amount << std::endl;
     return containsCurrency(currency, amount);
   }
   if(order.orderType == OrderBookType::bid)
diff --git a/CM2005 Object Oriented Programming/Topic 5/5.1.15/a.exe b/CM2005 Object Oriented Programming/Topic 5/5.1.15/a.exe
index 28ef2fc..9eaaaf5 100644
Binary files a/CM2005 Object Oriented Programming/Topic 5/5.1.15/a.exe and b/CM2005 Object Oriented Programming/Topic 5/5.1.15/a.exe differ
diff --git a/CM2005 Object Oriented Programming/Topic 5/5.1.15/main.cpp b/CM2005 Object Oriented Programming/Topic 5/5.1.15/main.cpp
index 303e1e5..d40af90 100644
--- a/CM2005 Object Oriented Programming/Topic 5/5.1.15/main.cpp	
+++ b/CM2005 Object Oriented Programming/Topic 5/5.1.15/main.cpp	
@@ -8,15 +8,15 @@
 
 int main()
 {   
-    //MerkelMain app{};
-    //app.init();
-    Wallet wallet;
-    wallet.insertCurrency("BTC", 10);
-    wallet.insertCurrency("USDT", 100.83);
-    std::cout << wallet.toString() << std::endl;
+    MerkelMain app{};
+    app.init();
+    // Wallet wallet;
+    // wallet.insertCurrency("BTC", 10);
+    // wallet.insertCurrency("USDT", 100.83);
+    // std::cout << wallet.toString() << std::endl;
     //std::cout << "Wallet has BTC " << wallet.containsCurrency("USDT", 100.50) << std::endl;
-    wallet.removeCurrency("USDT", 10);
-    std::cout << wallet.toString() << std::endl;
+    // wallet.removeCurrency("USDT", 10);
+    // std::cout << wallet.toString() << std::endl;
     //CSVReader::readCSV("20200317.csv");
 
 }