package main

import "fmt"

func kek(i int) {
	res_string := ""
	for range i {
		res_string += " "
	}
	fmt.Println(res_string,i)
}

func main() {
	done := make(chan int)
	
	for i:=range 10 {
		go func() {
			kek(i)
			done <- 1
		}()
	}
	for range 10 {
		<- done
	}

}