//! mainly used in competitive programming
//! template main function.
#![allow(unused_imports)]
pub use crate::{
io_locked_stdin_reader::*,
io_locked_stdout_buffered_writer::*,
};
// fn main() -> Result<(), Box<dyn std::error::Error>> {
// use std::io::Write;
// let mut reader = locked_stdin_reader();
// let mut writer = locked_stdout_buf_writer();
// writer.flush()?;
// Ok(())
// }