fn main() {
    println!("{}", if solve() { "Yes" } else { "No" });
}

fn solve() -> bool {
    let n = {
        let mut line = String::new();
        std::io::stdin().read_line(&mut line).unwrap();
        line.trim().parse::<usize>().unwrap()
    };
    let mut mat = vec![];
    for _ in 0..n {
        let mut line = String::new();
        std::io::stdin().read_line(&mut line).unwrap();
        mat.push(
            line.split_whitespace()
                .map(|x| x.parse::<usize>().unwrap())
                .collect::<Vec<_>>(),
        );
    }

    for i in 0..n {
        for j in 0..n {
            for k in 0..n {
                if mat[mat[i][j]][k] != mat[i][mat[j][k]] {
                    return false;
                }
            }
        }
    }

    let e = (0..n).find(|&x| (0..n).all(|i| mat[i][x] == i && mat[x][i] == i));
    let e = if let Some(e) = e {
        e
    } else {
        return false;
    };

    (0..n).all(|i| (0..n).any(|x| mat[i][x] == e && mat[x][i] == e))
}