package main

import (
	"sync"
	"time"
)

func main() {
	var wg sync.WaitGroup
	wg.Add(100)
	for i :=0; i < 100; i++ {
		go func(wg *sync.WaitGroup) {
			time.Sleep(time.Minute* 5)
			wg.Done()
		}(&wg)
	}
	wg.Wait()
}