from math import sqrt


def f(x):
    return x ** 2 + a * x + b


a, b, c, d = map(int, input().split())

tmp = (a - c) ** 2 - 8 * (b - d)

if tmp > 0:
    x1 = (c - a) + sqrt(tmp)
    x1 /= 4
    x2 = (c - a) - sqrt(tmp)
    x2 /= 4
    y1 = f(x1)
    y2 = f(x2)
    p = (y1 - y2) / (x1 - x2)
    q = y1 - p * x1
    print(p, q)
elif tmp == 0:
    print("Yes")
else:
    print("No")