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[] NMi => ReadLine().Split().Select(c => int.Parse(c) - 1).ToArray();
    static int[][] NMap(int n) => Enumerable.Repeat(0, n).Select(_ => NMi).ToArray();
    public static void Main()
    {
        Solve();
    }
    static void Solve()
    {
        var c = NList;
        var (n, z) = (c[0], c[1]);
        WriteLine(Theo(n, z) ? "Yes" : "No");
    }
    static bool Theo(int n, int z)
    {
        if (n == 1)
        {
            return z > 1;
        }
        var x = new int[z + 1];
        for (var i = 1; i < x.Length; ++i)
        {
            x[i] = 1;
            for (var j = 0; j < n; ++j) x[i] *= i;
        }
        for (var i = 1; i < x.Length; ++i) for (var j = i; j < x.Length; ++j)
        {
            if (x[i] + x[j] == x[z])
            {
                return true;
            }
        }
        return false;
    }
}