# Import streamlit library
import streamlit as st

# Create a header
st.header('Sum Calculator')

# Create inputs for the user to enter two numbers
number1 = st.number_input('Enter first number', value=0)  # Default value set to 0
number2 = st.number_input('Enter second number', value=0)  # Default value set to 0

# Calculate the sum of the two numbers
sum = number1 + number2

# Display the sum of the two numbers
st.write(f"The sum of {number1} and {number2} is {sum}.")