#!/usr/bin/env python3


import decimal
import math


def analyze(a, b, c, d):
    det = (a - c) * (a - c) - decimal.Decimal(8) * (b - d)
    if det < 0:
        return (0, None)
    elif det == 0:
        return (1, None)
    else:
        sqrt_det = det ** decimal.Decimal(0.5)
        x_1 = (-b - sqrt_det) / decimal.Decimal(4)
        x_2 = (-b + sqrt_det) / decimal.Decimal(4)
        y_1 = x_1 * x_1 + a * x_1 + b
        y_2 = x_2 * x_2 + a * x_2 + b
        p = (y_1 - y_2) / (x_1 - x_2)
        q = y_1 - p * x_1
        return (2, (p, q))


def main():
    a, b, c, d = (decimal.Decimal(z) for z in input().split())
    num, pq = analyze(a, b, c, d)
    if num == 0:
        print("No")
    elif num == 1:
        print("Yes")
    else:
        p, q = pq
        print("{:.12f} {:.12f}".format(p, q))


if __name__ == '__main__':
    main()