a, b, c, d = map(int, input().split())
if (a-c)**2-8*(b-d)<0:
    print('No')
elif (a-c)**2-8*(b-d)==0:
    print('Yes')
else:
    x1 = ((c-a) + ((a-c)**2-8*(b-d))**0.5) / 4
    x2 = ((c-a) - ((a-c)**2-8*(b-d))**0.5) / 4
    y1 = x1**2 + a*x1 + b
    y2 = x2**2 + a*x2 + b
    p = (y2-y1)/(x2-x1)
    q = y1 - p*x1
    print(p, q)