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

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

def c1(x):
    return x**2 + a*x + b
def c2(x):
    return x**2 + c*x + d

if D < 0:
    print('No')
elif D == 0:
    print('Yes')
else:
    x1 = (-(a-c) - math.sqrt(D))/4
    x2 = (-(a-c) + math.sqrt(D))/4

    dash = (c1(x2)-c1(x1))/(math.sqrt(D)/2)
    sep = -dash * x1 + c1(x1)

    # print(D,x1,x2,dash,sep)

    print(dash, sep)