a, b, c, d = gets.split.map(&:to_i)

D = (a - c) ** 2 - 4 * 2 * (b - d)

if D < 0
  puts 'No'
elsif D == 0
  puts 'Yes'
else
  x1 = Rational(-(a - c) + Math.sqrt(D), 4)
  x2 = Rational(-(a - c) - Math.sqrt(D), 4)

  y1 = x1 ** 2 + a * x1 + b
  y2 = x2 ** 2 + a * x2 + b

  dx = (x1 - x2)
  dy = (y1 - y2)

  p = Rational(dy, dx)
  q = y1 - p * x1

  puts "%.12f %.12f" % [p, q]
end