using System;
using static System.Console;
using System.Linq;
using System.Collections.Generic;
using System.Security.Cryptography;

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 p = NList;
        var pos = new int[n];
        for (var i = 0; i < n; ++i) pos[p[i] - 1] = i + 1;
        var tmp = new int[n];
        for (var i = 0; i < n; ++i) tmp[i] = i + 1;
        WriteLine("Yes");
        var ans = new List<int>();
        for (var i = 0; i < n; ++i)
        {
            for (var j = i; j < n; ++j)
            {
                if (pos[i] == tmp[j])
                {
                    for (var k = j - 1; k >= i; --k)
                    {
                        (tmp[k], tmp[k + 1]) = (tmp[k + 1], tmp[k]);
                        ans.Add(k + 1);
                    }
                    break;
                }
            }
        }
        WriteLine(ans.Count);
        if (ans.Count > 0) WriteLine(string.Join("\n", ans));
    }
}