import math
n,a,b,x,y=list(map(int,input().split()))
h=list(map(int,input().split ()))
h.sort()
for i in range (b):
    p=y
    for j in range(n):
        d=min(p,h[j])
        h[j]-=d
        p-=d
        if p==0:
            break
for k in range(n):
    if h[k]>0:
       a-=math.ceil(h[k]/x)
    elif k==n-1 and a>=0:
           print("Yes")
    if a<0:
        print("No")
        break