import sys

N, X, Y = map(int, input().split())
R = list(map(int, input().split()))

if N == 1:
	if R[0] * R[0] == X * X + Y * Y:
		print("Yes")
	else:
		print("No")
	sys.exit()

check = 0
for i in range(N):
	if i == 0:
		check += R[i]
	else:
		check += 2 * R[i]

if check * check >= X * X + Y * Y:
	print("Yes")
else:
	print("No")