fn main() {
    let mut aa = String::new();
    std::io::Read::read_to_string(&mut std::io::stdin(), &mut aa).ok();
    let aa: Vec<i64> = aa.split_whitespace().skip(1).flat_map(str::parse).collect();

    let distances: Vec<i64> = aa.windows(2).map(|a| a[1] - a[0]).collect();

    println!("{}", distances.iter().min().unwrap());
    println!("{}", aa.last().unwrap() - aa.first().unwrap());
}