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import streamlit as st

st.set_page_config(page_title="Student Calculator App", page_icon="🧮")

st.title("🧮 Student Calculator App")

# Input fields
num1 = st.number_input("Enter first number", format="%f")
num2 = st.number_input("Enter second number", format="%f")

operation = st.radio("Select Operation", ["Add", "Subtract", "Multiply", "Divide"])

# Calculation
def calculate(a, b, op):
    if op == "Add":
        return a + b
    elif op == "Subtract":
        return a - b
    elif op == "Multiply":
        return a * b
    elif op == "Divide":
        if b == 0:
            return "Error: Division by zero"
        return a / b

if st.button("Calculate"):
    result = calculate(num1, num2, operation)
    st.success(f"Result: {result}")