n, a, b, x, y = map(int, input().split())
H = list(map(int, input().split()))

Hc = [(H[i], i) for i in range(n)]
Hc.sort(key=lambda x: x[0], reverse=True)
for i in range(n):
    ind = Hc[i][1]
    if H[ind] >= x:
        q, r = divmod(H[ind], x)
        if a >= q:
            H[ind] = r
            a -= q
        else:
            H[ind] -= a * x
            a = 0
    if a == 0:
        break

if a > 0:
    for i in range(n):
        if H[i] > 0:
            H[i] = 0
            a -= 1
        if a == 0:
            break

sumH = sum(H)
if sumH > b * y:
    print("No")
else:
    print("Yes")