package main

import . "fmt"

func main() {
	var n,a,b,x,y int
	Scan(&n,&a,&b,&x,&y)
	dp := make([]int, a+1)
	for i := range dp {
		dp[i] = -1
	}
	dp[0] = y*b
	for ; n > 0; n-- {
		var h int
		Scan(&h)
		tmp := make([]int, a+1)
		for i := range tmp {
			tmp[i] = -1
		}
		for i, r := range dp {
			if r < 0 {
				continue
			}
			for j := 0; j < a-i; j++ {
				e := max(0, h - j*x)
				tmp[i+j] = max(tmp[i+j], r-e)
				if e <= 0 {
					break
				}
			}
		}
		dp = tmp
	}
	for _, r := range dp {
		if r >= 0 {
			Println("Yes")
			return
		}
	}
	Println("No")
}