import sys
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines
sys.setrecursionlimit(10 ** 7)

from math import sqrt

a, b, c, d = map(float, readline().split())
dd = (a - c) ** 2 - 8 * (b - d)
if dd < 0:
    print('No')
elif dd == 0:
    print('Yes')
else:
    x1 = ((c - a) + sqrt(dd)) / 4
    x2 = ((c - a) - sqrt(dd)) / 4
    y1 = x1 ** 2 + a * x1 + b
    y2 = x2 ** 2 + a * x2 + b
    p = (y1 - y2) / (x1 - x2)
    q = y1 - p * x1
    print(p, q)