a, b, c, d = map(int, input().split())
tmp = (a - c) ** 2 - 8 * (b - d)
if tmp < 0:
    print("No")
elif tmp == 0:
    print("Yes")
else:
    tmp **= 0.5
    x0 = (c - a + tmp) / 4
    x1 = (c - a - tmp) / 4
    y0 = x0 * x0 + a * x0 + b
    y1 = x1 * x1 + a * x1 + b
    p = (y1 - y0) / (x1 - x0)
    q = y0 - p * x0
    print(p, q)