#![allow(non_snake_case, unused_imports)]
use std::io::{self, prelude::*};
use std::str;

fn main() {
    let (stdin, stdout) = (io::stdin(), io::stdout());
    let mut scan = Scanner::new(stdin.lock());
    let mut out = io::BufWriter::new(stdout.lock());

    macro_rules! input {
        ($T: ty) => {
            scan.token::<$T>()
        };
    }

    fn dist(x1: usize, y1: usize, x2: usize, y2: usize) -> usize {
        let mut ret = 0;

        if x1 < x2 {
            ret += x2 - x1;
        } else {
            ret += x1 - x2;
        }

        if y1 < y2 {
            ret += y2 - y1;
        } else {
            ret += y1 - y2;
        }

        ret
    }

    let N = input!(usize);
    let XY = (0..N)
        .map(|_| (input!(usize), input!(usize)))
        .collect::<Vec<_>>();

    let mut score = 1 << 60;

    for i in 0..=300 {
        for j in 0..=300 {
            let mut s = 0;

            for k in 0..N {
                let (x, y) = XY[k];
                s += dist(i, j, x, y);
            }

            if s < score {
                score = s;
            }
        }
    }

    writeln!(out, "{}", score);
}

struct Scanner<R> {
    reader: R,
    buf_str: Vec<u8>,
    buf_iter: str::SplitWhitespace<'static>,
}
impl<R: BufRead> Scanner<R> {
    fn new(reader: R) -> Self {
        Self {
            reader,
            buf_str: vec![],
            buf_iter: "".split_whitespace(),
        }
    }
    fn token<T: str::FromStr>(&mut self) -> T {
        loop {
            if let Some(token) = self.buf_iter.next() {
                return token.parse().ok().expect("Failed parse");
            }
            self.buf_str.clear();
            self.reader
                .read_until(b'\n', &mut self.buf_str)
                .expect("Failed read");
            self.buf_iter = unsafe {
                let slice = str::from_utf8_unchecked(&self.buf_str);
                std::mem::transmute(slice.split_whitespace())
            }
        }
    }
}