import streamlit as st

st.markdown("Hello World")

import streamlit as st
import time

def main():
    st.title("File Upload and Display")

    # File upload
    uploaded_file = st.file_uploader("Upload a file")

    if uploaded_file is not None:
        # Display file contents using st.markdown()
        file_contents = uploaded_file.read().decode("utf-8")
        st.markdown("### File Contents:")
        st.markdown(f"```{file_contents}```")

    # Wait for 5 seconds
    time.sleep(5)

    # Show completed message
    st.success("File processing completed!")

if __name__ == "__main__":
    main()