use std::io::Read;

fn run() {
    let mut s = String::new();
    std::io::stdin().read_to_string(&mut s).unwrap();
    let mut it = s.trim().split_whitespace();
    let n: usize = it.next().unwrap().parse().unwrap();
    let mut a = vec![vec![]; n];
    for i in 0..n {
        for j in 0..n {
            let v: usize = it.next().unwrap().parse().unwrap();
            a[v - 1].push((i, j));
        }
    }
    let mut ans = 0;
    for a in a {
        assert!(a.len() == n);
        let mut left = vec![0; n + 1];
        let mut right = vec![0; n + 1];
        for (x, y) in a {
            ans += y;
            if x > y {
                left[x - y - 1] += 1;
            }
            if x + y + 1 < n {
                right[x + y + 1] += 1;
            }
        }
        for _ in 0..2 {
            for i in (0..n).rev() {
                left[i] += left[i + 1];
            }
            for i in 1..=n {
                right[i] += right[i - 1];
            }
        }
        let mut val = std::usize::MAX;
        for i in 0..n {
            val = std::cmp::min(val, left[i] + right[i]);
        }
        ans += val;
    }
    println!("{}", ans);
}

fn main() {
    run();
}