fun main() = runBlocking<Unit> {
    val job1 = GlobalScope.launch {
        for (i in 1..3) {
            println(i)
            delay(1000)
        }
    }
    val job2 = GlobalScope.launch {
        for (i in 4..6) {
            println(i)
            delay(1000)
        }
    }
    job1.join()
    job2.join()
}