fn main() {
	let n: usize = {  // 単一の整数を受け取り, nに束縛する
        let mut line: String = String::new();
        std::io::stdin().read_line(&mut line).unwrap();
        line.trim().parse().unwrap()
    };
    let mut xsum = 0; let mut ysum = 0;
    let mut a = vec![0; n];
    let mut b = vec![0; n];
    for i in 0..n {
    	let (c, d): (usize, usize) = {
	        let mut line: String = String::new();
	        std::io::stdin().read_line(&mut line).unwrap();
	        let mut iter = line.split_whitespace();
	        (
	            iter.next().unwrap().parse().unwrap(),
	            iter.next().unwrap().parse().unwrap()
	        )
	    };
        a[i] = c; b[i] = d;
	    xsum += a[i]; ysum += b[i];
	}
    let x = xsum / n; let y = ysum / n;
    let mut ans = [0, 0];
    for i in 0..n {
    	ans[0] += (x as isize - a[i] as isize).abs();
    	ans[0] += (y as isize - b[i] as isize).abs();
        ans[1] += (x as isize - a[i] as isize + 1).abs();
        ans[1] += (x as isize - b[i] as isize + 1).abs();
    }
    println!("{}", ans[0].min(ans[1]));
}