diff --git a/CM2005 Object Oriented Programming/Topic 1/.gitignore b/CM2005 Object Oriented Programming/Topic 1/.gitignore
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+.vscode
\ No newline at end of file
diff --git a/CM2005 Object Oriented Programming/Topic 1/1.3.5/a.exe b/CM2005 Object Oriented Programming/Topic 1/1.3.5/a.exe
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diff --git a/CM2005 Object Oriented Programming/Topic 1/1.3.5/main.cpp b/CM2005 Object Oriented Programming/Topic 1/1.3.5/main.cpp
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+#include <iostream>
+
+int main(int argc, char const *argv[])
+{
+  // 1 print help
+  std::cout << "1: Print help" << std::endl;
+  // 2 print exchange stats
+  std::cout << "2: Print exchange stats" << std::endl;
+  // 3 make an offer
+  std::cout << "3: Make an offer" << std::endl;
+  // 4 make a bid
+  std::cout << "4: Make a bid " << std::endl;
+  // 5 print wallet
+  std::cout << "5: Print wallet " << std::endl;
+  // 6 continue
+  std::cout << "6: Continue" << std::endl;
+
+  std::cout << "==========" << std::endl;
+  std::cout << "Enter an option: " << std::endl;
+
+  int userOption;
+  std::cin >> userOption;
+  std::cout << "You chose: " << userOption  << std::endl;
+  
+  if(userOption == 0) // bad input
+  {
+    std::cout << "Invalid choice. Choose 1-6" << std::endl;
+  }
+
+  if(userOption == 1) // Option 1 - Help
+  {
+    std::cout << "Help - Your aim is to analyze the market, make bid and offers and make money." << std::endl;
+  }
+
+  if(userOption == 2) // Option 2 - Stats
+  {
+    std::cout << "Market looks good" << std::endl;
+  }
+
+  if(userOption == 3) // Option 3 - Offer
+  {
+    std::cout << "Make an offer - Enter the amount: " << std::endl;
+  }
+
+  if(userOption == 4) // Option 4 - Bid
+  {
+    std::cout << "Make a bid - Enter the amount: " << std::endl;
+  }
+
+  if(userOption == 5) // Option 5 - Wallet
+  {
+    std::cout << "Your wallet is empty. " << std::endl;
+  }
+
+  if(userOption == 0) // bad input
+  {
+    std::cout << "Going to next time frame. " << std::endl;
+  }
+
+  return 0;
+}