n, x, y = map(int, input().split())
lst = [*map(int, input().split())]
lst.sort()
lst[0] = lst[0]/2
for i in range(1, n):
    lst[i] = lst[i]*2

if sum(lst) >= (x**2 + y**2) ** 0.5:
    print("Yes")
else:
    print("No")