using System;

public class Hello
{
    static void Main()
    {
        string[] line = Console.ReadLine().Trim().Split(' ');
        var a = Array.ConvertAll(line, int.Parse);
        line = Console.ReadLine().Trim().Split(' ');
        var b = Array.ConvertAll(line, int.Parse);
        getAns(a, b);
    }
    static void getAns(int[] a, int[] b)
    {
        var t = 0;
        for (int i = 0; i < 4; i++) t += a[i] * b[i];
        Console.WriteLine(t <= b[4] ? "Yes" : "No");
    }
}