use std::io::prelude::*;
use std::io::BufReader;
use std::fs::File;

fn main() -> std::io::Result<()>{
    let f = File::open("adunare.in").expect("File to exist");
    let mut reader = BufReader::new(f);

    let mut line = String::new();
    reader.read_line(&mut line).expect("A line");
    let a: i32 = line.trim().parse().expect("An int");

    line = String::new();
    reader.read_line(&mut line).expect("A line");
    let b: i32 = line.trim().parse().expect("An int");

    let mut output = File::create("adunare.out").expect("FIle to be created")
    ;

    writeln!(&mut output, "{}", a+b)
}