package main

import (
	"fmt"
	"time"
)

func producer(chnl chan int) {
	for i := 0; i < 10; i++ {
		time.Sleep(100 * time.Millisecond)
		chnl <- i
	}
	close(chnl)
}

func outer(chn2 chan int) {
	for i := 10; i < 100; i++ {
		chn2 <- i
	}
	close(chn2)
}
func main() {
	ch, ch2 := make(chan int), make(chan int)
	go producer(ch)
	go outer(ch2)
	for {
		v, ok := <-ch
		if ok == false {
			v, ok2 := <-ch2
			if ok2 == false {
				break
			}
			fmt.Println("Received2 ", v, ok)
			continue
		}
		fmt.Println("Received ", v, ok)
	}
	ch3 := make(chan int)
	go producer(ch3)
	for v := range ch3 {
		fmt.Println("Received ", v)
	}
}