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

class Program
{
    static int NN => int.Parse(ReadLine());
    static long[] NList => ReadLine().Split().Select(long.Parse).ToArray();
    public static void Main()
    {
        Solve();
    }
    static void Solve()
    {
        var c = NList;
        var (n, x, y) = (c[0], c[1], c[2]);
        var a = NList;
        Array.Sort(a);
        var len = x * x + y * y;
        var max = a[0];
        for (var i = 1; i < n; ++i) max += a[i] * 2;
        WriteLine(len <= max * max ? "Yes" : "No");
    }
}