diff --git a/labs/lab_1/lab_1a.py b/labs/lab_1/lab_1a.py
index 9d15ec83..e37d88b4 100644
--- a/labs/lab_1/lab_1a.py
+++ b/labs/lab_1/lab_1a.py
@@ -1,6 +1,6 @@
 """
 lab_1a.py
-
+This is to simulate a change made on a robot: robot_speed = 3 # m/s
 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.
 """
@@ -8,9 +8,10 @@
 def main():
     print("Hello World!")
 
-    name = "" # TODO: Insert your name between the double quotes
+    name = "Allen Sheng" # TODO: Insert your name between the double quotes
 
     print(f"{name}, Welcome to the CSS course!")
+    print ("I am 14 years old and I am in 9th grade.")
 
 if __name__ == "__main__":
     main()
diff --git a/labs/lab_1/lab_1b.py b/labs/lab_1/lab_1b.py
index e58dd957..e1c61968 100644
--- a/labs/lab_1/lab_1b.py
+++ b/labs/lab_1/lab_1b.py
@@ -37,6 +37,20 @@ def simple_calculator(operation: str, num1: float, num2: float) -> float:
     else:
         raise ValueError("Invalid operation. Please choose from 'add', 'subtract', 'multiply', or 'divide'.")
 
+def request_sanitized_number(prompt: str) -> float:
+    """
+    Function to request and sanitize user input for the operation
+
+    Returns:
+        float: The sanitized numeric input by the user.
+    """
+
+while True:
+    try:
+        number=float (input(prompt))
+    except ValueError:
+        print ("Invalid input. Please enter a valid number")
+
 def main():
     
     print(f"===== Simple Calculator =====")