Concurrent program go - 1

main.go

func main() {

	ch := make(chan int)
	out := make(chan int)

	go func(ch1 chan int, out chan int) {
		res := 0
		for v := range ch1 {
			fmt.Println("Receive: ", v)
			res += v
		}
		out <- res
	}(ch, out)

	ch <- 1
	ch <- 2
	ch <- 3
	close(ch)

	fmt.Println("Total:", <-out)
}