a = int(input())
b = int(input())
c = int(input())
for x in range(abs(b - c) + 1, b + c):
	for d in range(1, x):
		e = x - a - d
		if e >= 1:
			if (2 * b * b * x - d * (b * b + x * x - c * c)) ** 2 * ((c * c + e * e) * x - e * (c * c + x * x - b * b)) * c * c == (2 * c * c * x - e * (c * c + x * x - b * b)) ** 2 * ((b * b + d * d) * x - d * (b * b + x * x - c * c)) * b * b:
				exit(print("Yes"))
print("No")