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							- 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))
 
- }
 
 
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