import gradio as gr

def calculator(num1, num2, operation):
    if operation == "Addition (+)":
        return num1 + num2
    elif operation == "Subtraction (-)":
        return num1 - num2
    elif operation == "Multiplication (*)":
        return num1 * num2
    elif operation == "Division (/)" and num2 != 0:
        return num1 / num2
    else:
        return "Error: Division by zero"

demo = gr.Interface(
    fn=calculator,
    inputs=[
        gr.Number(label="Number 1"),
        gr.Number(label="Number 2"),
        gr.Radio(["Addition (+)", "Subtraction (-)", "Multiplication (*)", "Division (/)"], label="Operation")
    ],
    outputs="text",
    title="Simple Calculator"
)

demo.launch()