use std::{fs::File, io::{BufRead, BufReader, Write}};

fn main() -> std::io::Result<()> {
    let fin = File::open("adunare.in")?;
    let reader = BufReader::new(fin);

    let numbers: Vec<i64> = reader
        .lines()
        .map(|line| line.unwrap().parse::<i64>().unwrap())
        .collect();

    let mut fout = File::create("adunare.out")?;

    let sum = numbers[0] + numbers[1];

    let rez = sum.to_string().into_bytes();

    let _ = fout.write(&rez[..]);

    Ok(())
}