package main

import (
	"fmt"
	"math"
)

func main() {
	var L, R int
	fmt.Scan(&L, &R)
	theta := float64(L) / float64(R)
	fmt.Printf("%.3f %.3f\n", float64(R)*math.Cos(theta), float64(R)*math.Sin(-theta))
	fmt.Printf("%.3f %.3f", float64(R)*math.Cos(theta), float64(R)*math.Sin(theta))
}