from heapq import *

N, A, B, X, Y = map(int, input().split())
H = list(map(int, input().split()))
H = list(map(lambda x : -x, H))
heapify(H)
while A:
    v = -heappop(H)
    q = v // X
    if q:
        if q >= A:
            v -= q * X
            q -= A
            A = 0
            heappush(H, -v)
        else:
            A -= q
            heappush(H, 0)
    else:
        A -= 1
        heappush(H, 0)
       
if -sum(H) <= B * Y:
    print("Yes")
else:
    print("No")