我有一个3行的列表：

private val line1 = mutableListOf<Int>()
private val line2 = mutableListOf<Int>()
private val line3 = mutableListOf<Int>()
val card = mutableListOf(line1, line2, line3)

我需要用5个从1到90的唯一数字填充每行，怎么做？
我试过流，但它不工作，因为数字在每一行是一样的。我只需要5个唯一的数字在每一行。

class Card {

    private val line1 = mutableListOf<Int>()
    private val line2 = mutableListOf<Int>()
    private val line3 = mutableListOf<Int>()

    val card = mutableListOf(line1, line2, line3)

    init {
        runBlocking {
            launch {
                Generator.flow.collect {
                    card.forEach { line ->
                        line.add(it)
                    }
                }
            }
        }
    }
}