diff --git a/Start/Ch 3/challenge.py b/Start/Ch 3/challenge.py
index 679db2b..3bb6e99 100644
--- a/Start/Ch 3/challenge.py	
+++ b/Start/Ch 3/challenge.py	
@@ -23,6 +23,12 @@ def __init__(self, ticker, price, company):
         self.company = company
         self.ticker = ticker
 
+    def __str__(self):
+        return f"{self.ticker}: {self.company_name} -- ${self.price}"
+
+    def __lt__(self, other):
+        return self.price < other.price
+
 
 class Bond(Asset):
     def __init__(self, price, description, duration, yieldamt):
@@ -31,6 +37,12 @@ def __init__(self, price, description, duration, yieldamt):
         self.duration = duration
         self.yieldamt = yieldamt
 
+    def __str__(self):
+        return f"{self.description}: {self.duration}yr : ${self.price} : {self.yieldamt}%"
+
+    def __lt__(self, other):
+        return self.yieldamt < other.yieldamt
+
 
 # ~~~~~~~~~ TEST CODE ~~~~~~~~~
 stocks = [