import streamlit as st

st.title("Simple Arithmetic App")

# Input values
a = st.number_input("Enter first number", value=0.0)
b = st.number_input("Enter second number", value=0.0)

# Operation selection
operation = st.selectbox("Choose an operation", ["Add", "Subtract", "Multiply", "Divide"])

# Result
if operation == "Add":
    result = a + b
elif operation == "Subtract":
    result = a - b
elif operation == "Multiply":
    result = a * b
elif operation == "Divide":
    result = "Cannot divide by zero" if b == 0 else a / b

st.write("### Result:", result)