import kotlinx.coroutines.delay

suspend fun first(a: Int): Int {
    delay(100)
    return a + 1
}

suspend fun testMap(a: Map<String, Int>): Int {

    a.forEach { key, value ->
        first(value)
        println(value)
    }

    return 0
}

suspend fun testList(a: List<Int>): Int {

    a.forEach {
        first(it)
        println(it)
    }

    return 0
}