using System;
using static System.Console;
using System.Linq;
using System.Collections.Generic;
using System.Globalization;

class Program
{
    static int NN => int.Parse(ReadLine());
    static long[] NList => ReadLine().Split().Select(long.Parse).ToArray();
    static long[][] NArr(long n) => Enumerable.Repeat(0, (int)n).Select(_ => NList).ToArray();
    public static void Main()
    {
        Solve();
    }
    static void Solve()
    {
        var n = NN;
        var map = NArr(n);
        var cum = new long[n][];
        for (var i = 0; i < cum.Length; ++i) cum[i] = new long[n];
        var sum = new long[n];
        for (var i = 0; i < n; ++i) for (var j = 0; j < n; ++j)
            {
                var ai = map[i][j] - 1;
                sum[ai] += Math.Max(i, j);
                --cum[ai][0];
                ++cum[ai][Math.Max(0, i - j)];
                if (i + j < n) ++cum[ai][i + j];
            }
        var ans = 0L;
        for (var i = 0; i < n; ++i)
        {
            for (var j = 1; j < n; ++j) cum[i][j] += cum[i][j - 1];
            for (var j = 1; j < n; ++j) cum[i][j] += cum[i][j - 1];
            var sub = sum[i];
            for (var j = 0; j + 1 < n; ++j) sub = Math.Min(sub, sum[i] + cum[i][j]);
            ans += sub;
        }
        WriteLine(ans);
    }
}