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