fibonacci sequence
// Copy pastecode here https://play.golang.org/
package main
import "fmt"
func fibo(n int) int {
	x, y := 0, 1
	for i := 0; i < n; i++ {
		x, y = y, x+y
	}
	return x
}
func main() {
	for i := 0; i < 10; i++ {
		fmt.Println("fibo of", i, "is", fibo(i))
	}
}
