chans.go

package main

import (
	"fmt"
)

func a(x chan int) {
	fmt.Println("a")
	x <- 9
}
func b(y chan int) {
	fmt.Println("b")
	y <- 10
}
	
func main() {
	c := make(chan int)
	go a(c)
	go b(c)
	x, y := <-c, <-c
	fmt.Println(x, y)
	fmt.Println("done")
}