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 c = NList;
        var (n, a, b, x, y) = (c[0], c[1], c[2], c[3], c[4]);
        var h = NList.ToList();
        for (var i = 0; i < n; ++i)
        {
            if (a == 0) break;
            if (h[i] >= x)
            {
                a -= h[i] / x;
                h[i] -= h[i] / x * x;
            }
        }
        if (a > 0 && h.Count > 0)
        {
            h = h.Where(hi => hi > 0).ToList();
            h.Sort((l, r) => r.CompareTo(l));
            for (var i = 0; i < a && i < h.Count; ++i)
            {
                --a;
                h[i] = 0;
            }
        }
        var sum = 0L;
        foreach (var hi in h) sum += hi;
        WriteLine(sum - (long)b * y <= 0 ? "Yes" : "No");
    }
}