a, b, c, d = map(int, input().split())
D = (a - c) ** 2 - 8 * (b - d)
if D == 0:
    print("Yes")
elif D < 0:
    print("No")
else:
    x1 = (c - a + (D ** 0.5)) / 4
    x2 = (c - a - (D ** 0.5)) / 4
    y1 = x1 ** 2 + a * x1 + b
    y2 = x2 ** 2 + a * x2 + b
    p = (y2 - y1) / (x2 - x1)
    q = y1 - p * x1
    print(p, q)