n, x, y = map(int, input().split())
r = list(map(int, input().split()))
r.sort()

d = r[0] / 2
for i in range(n - 1):
    d += r[i + 1] * 2

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