```val l1 = listOf<String>("A", "A", "B") ...

# announcements

[Mani]

val l1 = listOf<String>("A", "A", "B")
    l1.distinct() as ArrayList<String>
    println("l1 worked..!")
    
    val l2 = listOf<String>("A", "A", "A")
    l2.distinct() as ArrayList<String>