package main

import (
	"fmt"
	"sync"
	// "time"
)


// func a(name int, channel chan int, wg *sync.WaitGroup) {
// 	defer wg.Done()
// 	for i := 0; i < 3; i++ {
// 		fmt.Printf("Number %d is sending\n",name)
// 		channel <- name
// 	}
// 	fmt.Printf("Num %d is ended\n",name)
// }
func test(name int,channel chan []int, wg *sync.WaitGroup) {
	defer wg.Done()
	inter := []int{}
	for i := 0; i < 3; i++ {
		inter = append(inter, name)
	}
	channel <- inter
}



func main() {

	var wg sync.WaitGroup
	_list := []int{1,2,3,4,5}
	a_chan := make(chan []int)

	for _,k := range _list {
		wg.Add(1)
		go test(k,a_chan, &wg)
	}

	go func() {
		wg.Wait()
		close(a_chan)
	}()

	// for i := range a_chan {
	// 	fmt.Println(i)
	// }
	for i := range a_chan {
	fmt.Println(i)
	}
}