using System;
using static System.Console;
using System.Linq;
using System.Collections.Generic;
class Program
{
    static int NN => int.Parse(ReadLine());
    static int[] NList => ReadLine().Split().Select(int.Parse).ToArray();
    static int[][] 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);
        for (var i = 0; i < n; ++i) for (var j = 0; j < n; ++j)
        {
            if (map[i][j] != map[j][i])
            {
                WriteLine("No");
                return;
            }
            for (var k = 0; k < n; ++k)
            {
                if (map[map[i][j]][k] != map[i][map[j][k]])
                {
                    WriteLine("No");
                    return;
                }
            }
        }
        var elist = new List<int>();
        for (var e = 0; e < n; ++e)
        {
            var flg = true;
            for (var j = 0; j < n; ++j)
            {
                if (map[e][j] != j) flg = false;
            }
            if (flg) elist.Add(e);
        }
        foreach (var e in elist)
        {
            var all = true;
            for (var i = 0; i < n; ++i)
            {
                var flg = false;
                for (var j = 0; j < n; ++j)
                {
                    if (map[i][j] == e)
                    {
                        flg = true;
                        break;
                    }
                }
                if (!flg)
                {
                    all = false;
                    break;
                }
            }
            if (all)
            {
                WriteLine("Yes");
                return;
            }
        }
        WriteLine("No");
    }
}