use std::collections::BTreeSet;

use proconio::input;

const INF: i64 = 10_i64.pow(10);

fn main() {
    input! {
        n: usize,
        mut xy: [(i64, i64); n],
    }

    xy.sort_unstable();

    let mut min_d = INF;
    let mut set1 = BTreeSet::<(i64, usize)>::new();
    let mut set2 =
        BTreeSet::<(i64, usize)>::from_iter(xy.iter().enumerate().map(|(i, v)| (v.1, i)));
    for (i, &(_, y)) in xy.iter().enumerate() {
        let d1 = if i == 0 {
            0
        } else {
            let min_y = set1.first().unwrap().0;
            let max_y = set1.last().unwrap().0;
            xy[i - 1].0 - xy[0].0 + max_y - min_y
        };

        let d2 = {
            let min_y = set2.first().unwrap().0;
            let max_y = set2.last().unwrap().0;
            xy[n - 1].0 - xy[i].0 + max_y - min_y
        };

        min_d = min_d.min(d1.max(d2));

        set1.insert((y, i));
        set2.remove(&(y, i));
    }

    println!("{min_d}");
}