Collection.kt

fun main() {
    val immutableList = listOf(1,2,3,4,5,6,7) //(1) 
    println("Immutable List $immutableList") 
    val mutableList = immutableList.toMutableList() //(2) 
    println("Mutable List $mutableList") 
    mutableList.add(8) //(3) 
    println("Mutable List after add $mutableList") 
    println("Mutable List after add $immutableList") 
}