enum Direction {
    Forward,
    Backward,
}

fn main() {
    let stdin = std::io::stdin();

    let mut part1 = 0;
    let mut part2 = 0;

    for line in stdin.lines() {
        let line = line.unwrap();

        let history = line.split(" ").map(|e| e.parse().unwrap()).collect();

        part1 += extrapolate(&history, Direction::Forward);
        part2 += extrapolate(&history, Direction::Backward);
    }

    println!("{}", part1);
    println!("{}", part2);
}

fn extrapolate(history: &Vec<isize>, direction: Direction) -> isize {
    if history.iter().all(|e| *e == 0) {
        return 0;
    }

    let new_history = history.windows(2).map(|pair| pair[1] - pair[0]).collect();

    if let Direction::Forward = direction {
        return history.last().unwrap() + extrapolate(&new_history, direction);
    }

    return history[0] - extrapolate(&new_history, direction);
}