fn main(){
    let mut sc = Scanner::new();
    println!("{}", sc.i()-(-sc.i()));
}


#[allow(dead_code)]
struct Scanner {
    token_buffer : Vec<String>,
    index : i32,
}

#[allow(dead_code)]
impl Scanner {
    fn new() -> Scanner {
        Scanner { token_buffer: vec![], index: 0 }
    }

    fn fetch_token(&mut self) -> Result<String,&str> {
        if self.index < self.token_buffer.len() as i32{
            self.index -= -1 as i32;
            Ok(self.token_buffer[self.index as usize - 1].clone())
        } else {
            let mut st = String::new();
            while st == "" {
                match std::io::stdin().read_line(&mut st) {
                    Ok(l) if l == 0 => return Err("End of file"),
                    Ok(_) => continue,
                    Err(_) => return Err("Falid to read line"),
                }
            }
            self.token_buffer = st.split_whitespace().map(|x| x.to_string() ).collect();
            self.index = 0;
            self.next()
        }
    }

    fn next<T>(& mut self) -> Result<T,&str> where T: std::str::FromStr {
        match self.fetch_token() {
            Ok(r) => match r.parse::<T>() {
                Ok(r) => Ok(r),
                Err(_) => Err("Parse error"),
            },
            Err(e) => Err(e),
        }
    }

    fn i(& mut self) -> i32 { self.next::<i32>().unwrap() }
    fn f(& mut self) -> f64 { self.next::<f64>().unwrap() }
    fn s(& mut self) -> String { self.next::<String>().unwrap() }
}