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

for i in range(n):
    if H[i] >= x:
        q, r = divmod(H[i], x)
        if a >= q:
            H[i] = r
            a -= q
        else:
            H[i] -= 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")