diff --git a/labs/lab_1/lab_1a.py b/labs/lab_1/lab_1a.py
index 9d15ec83..449cfeaf 100644
--- a/labs/lab_1/lab_1a.py
+++ b/labs/lab_1/lab_1a.py
@@ -3,12 +3,14 @@
 
 The first lab in the BWSI CSS course. To complete this lab, fill out the variable on line 10
 with your name. Then, save the code, add it to the staging area, and commit it to the Git tree.
+
+This is to simulate a change on a robot: robot_speed = 3 # m/s
 """
 
 def main():
     print("Hello World!")
 
-    name = "" # TODO: Insert your name between the double quotes
+    name = "John Lee" # TODO: Insert your name between the double quotes
 
     print(f"{name}, Welcome to the CSS course!")
 
diff --git a/labs/lab_1/lab_1b.py b/labs/lab_1/lab_1b.py
index e58dd957..4c33f961 100644
--- a/labs/lab_1/lab_1b.py
+++ b/labs/lab_1/lab_1b.py
@@ -40,16 +40,18 @@ def simple_calculator(operation: str, num1: float, num2: float) -> float:
 def main():
     
     print(f"===== Simple Calculator =====")
-
-    # Ask the user for sample input    
-    num1 = float(input("Enter the first number: "))
-    num2 = float(input("Enter the second number: "))
-    operation = input("Enter the operation (add, subtract, multiply, divide): ").strip().lower()
-
-    # Perform the calculation and display the result
-    result = simple_calculator(operation, num1, num2)
-    print(f"The result of {operation}ing {num1} and {num2} is: {result}")
-
-
+    
+    try:
+        # Ask the user for sample input    
+        num1 = float(input("Enter the first number: "))
+        num2 = float(input("Enter the second number: "))
+        operation = input("Enter the operation (add, subtract, multiply, divide): ").strip().lower()
+
+        # Perform the calculation and display the result
+        result = simple_calculator(operation, num1, num2)
+        print(f"The result of {operation}ing {num1} and {num2} is: {result}")
+    except ValueError:
+        print("Invalid input! Please enter a numerical value or a valid math operator.")
+    
 if __name__ == "__main__":
     main()