use std::io::Read;
use std::cmp::min;

fn main() {
    let mut all_data = String::new();
    std::io::stdin().read_to_string(&mut all_data).ok();
    let all_data: Vec<&str> = all_data.trim().split('\n').map(|s| s.trim()).collect();
    let n: isize = all_data.iter().next().unwrap().parse().unwrap();
    let a: Vec<isize> = all_data.iter().skip(1).next().unwrap().split_whitespace().map(|s| s.parse().unwrap()).collect();
    let mut min_val: isize = 200_000;
    for i in 1..n {
        let diff = a[i as usize] - a[(i as usize)-1];
        min_val = min(min_val, diff);
    }
    println!("{}", min_val);
    println!("{}", a[(n as usize)-1] - a[0]);
}