def makeLinearEquation(x1, y1, x2, y2):
    return (y1-y2),(x2-x1),(y2-y1)*x1-y1*(x2-x1)

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

from fractions import Fraction

a,b,c,d = map(int,input().split())
A,B,C = 2,(a-c),(b-d)
p,q = 0,0
tmp = B**2-4*A*C
if tmp < 0:
    print("No")
elif tmp == 0:
    print("Yes")
else:
    x1,x2 = (-B+(tmp)**0.5)/(2*A),(-B-(tmp)**0.5)/(2*A)
    y1,y2 = makeY(x1),makeY(x2)
    a1 = x1-x2
    b1 = y1-y2
    c = a1*y1-b1*x1
    p = b1/a1
    q = c/a1
    print(p,q)