diff --git a/.github/workflows/run_test.yml b/.github/workflows/run_test.yml
new file mode 100644
index 00000000..c45bcbfc
--- /dev/null
+++ b/.github/workflows/run_test.yml
@@ -0,0 +1,32 @@
+name: simple_calculator unit test
+  
+on: [push]  
+  
+jobs:  
+  build:  
+    runs-on: ubuntu-latest  
+    strategy:  
+      matrix:  
+        python-version: ["3.10"]  
+  
+    steps:  
+      - uses: actions/checkout@v3  
+      - name: Set up Python ${{ matrix.python-version }}  
+        uses: actions/setup-python@v4  
+        with:  
+          python-version: ${{ matrix.python-version }}  
+      - name: Install dependencies  
+        run: |  
+          python -m pip install --upgrade pip  
+          if [ -f requirements.txt ]; then pip install -r requirements.txt; fi  
+      - name: Lint with Ruff  
+        run: |  
+          pip install ruff  
+          ruff --format=github --target-version=py310 .  
+        continue-on-error: true  
+      - name: Test with pytest  
+        run: |  
+          coverage run -m pytest tests/tests_1b.py -v -s  
+      - name: Generate Coverage Report  
+        run: |  
+          coverage report -m
\ No newline at end of file
diff --git a/labs/lab_1/lab_1a.py b/labs/lab_1/lab_1a.py
index 9d15ec83..91e9b73f 100644
--- a/labs/lab_1/lab_1a.py
+++ b/labs/lab_1/lab_1a.py
@@ -1,4 +1,4 @@
-"""
+"This is to simulate a change made on a robot: robot_speed = 8 # m/s"
 lab_1a.py
 
 The first lab in the BWSI CSS course. To complete this lab, fill out the variable on line 10
@@ -8,9 +8,9 @@
 def main():
     print("Hello World!")
 
-    name = "" # TODO: Insert your name between the double quotes
+    name = "Ben Chang" 
 
     print(f"{name}, Welcome to the CSS course!")
-
+print("Hey everyone. My name's Ben and I'm a junior from Massachusetts. My favorite school subject is physics. For fun, I like to read, watch TV, or go out to try random food with my friends. My favorite ice cream flavor is pistachio.")
 if __name__ == "__main__":
     main()
diff --git a/labs/lab_1/lab_1b.py b/labs/lab_1/lab_1b.py
index e58dd957..2ece1f25 100644
--- a/labs/lab_1/lab_1b.py
+++ b/labs/lab_1/lab_1b.py
@@ -38,17 +38,20 @@ def simple_calculator(operation: str, num1: float, num2: float) -> float:
         raise ValueError("Invalid operation. Please choose from 'add', 'subtract', 'multiply', or 'divide'.")
 
 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()
+    while True:
+        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}")
+            result = simple_calculator(operation, num1, num2)
+            print(f"The result of {operation}ing {num1} and {num2} is: {result}")
+            break
+        except ValueError:
+            print("Error")
 
 
 if __name__ == "__main__":