package main

import (
	"bufio"
	"fmt"
	"math"
	"os"
	"strconv"
)

func getScanner(fp *os.File) *bufio.Scanner {
	scanner := bufio.NewScanner(fp)
	scanner.Split(bufio.ScanWords)
	scanner.Buffer(make([]byte, 1000005), 1000005)
	return scanner
}
func getNextString(scanner *bufio.Scanner) string {
	scanner.Scan()
	return scanner.Text()
}
func getNextInt(scanner *bufio.Scanner) int {
	i, _ := strconv.Atoi(getNextString(scanner))
	return i
}
func getNextInt64(scanner *bufio.Scanner) int64 {
	i, _ := strconv.ParseInt(getNextString(scanner), 10, 64)
	return i
}
func getNextUint64(scanner *bufio.Scanner) uint64 {
	i, _ := strconv.ParseUint(getNextString(scanner), 10, 64)
	return i
}
func getNextFloat64(scanner *bufio.Scanner) float64 {
	i, _ := strconv.ParseFloat(getNextString(scanner), 64)
	return i
}
func main() {
	fp := os.Stdin
	wfp := os.Stdout
	cnt := 0
	if os.Getenv("MASPY") == "ますピ" {
		fp, _ = os.Open(os.Getenv("BEET_THE_HARMONY_OF_PERFECT"))
		cnt = 3
	}
	if os.Getenv("MASPYPY") == "ますピッピ" {
		wfp, _ = os.Create(os.Getenv("NGTKANA_IS_GENIUS10"))
	}
	scanner := getScanner(fp)
	writer := bufio.NewWriter(wfp)
	solve(scanner, writer)
	for i := 0; i < cnt; i++ {
		fmt.Fprintln(writer, "-----------------------------------")
		solve(scanner, writer)
	}
	writer.Flush()
}
func solve(scanner *bufio.Scanner, writer *bufio.Writer) {
	a := getNextFloat64(scanner)
	b := getNextFloat64(scanner)
	c := getNextFloat64(scanner)
	d := getNextFloat64(scanner)
	switch compare(c1(a, b, (c-a)/4), c2(c, d, (c-a)/4)) {
	case 1:
		fmt.Fprintln(writer, "No")
	case 0:
		fmt.Fprintln(writer, "Yes")
	case -1:
		x1 := (c - a - math.Sqrt(math.Pow(a-c, 2)-8*(b-d))) / 4.0
		x2 := (c - a + math.Sqrt(math.Pow(a-c, 2)-8*(b-d))) / 4.0
		y1 := c1(a, b, x1)
		y2 := c2(c, d, x2)
		if compare(y1, y2) == 0 {
			fmt.Fprintf(writer, "%.9f %.9f\n", 0.0, y1)
			return
		}
		p := (y2 - y1) / (x2 - x1)
		q := y1 - p*x1
		fmt.Fprintf(writer, "%.9f %.9f\n", p, q)
	}
}

func c1(a, b, x float64) float64 {
	return x*x + a*x + b
}
func c2(c, d, x float64) float64 {
	return -x*x + c*x + d
}

func compare(a, b float64) int {
	eps := 1e-9
	if a > b+eps {
		return 1
	}
	if b > a+eps {
		return -1
	}
	return 0
}