``` data class Outer(var value: Int = 0) data cla...
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data class Outer(var value: Int = 0)

data class Inner(var value: Int = 0)

val value = 33

fun main(args: Array<String>) {
    //val value = 33
    println(Outer().apply {
        value = 21
        println(Inner().apply {
            value = 42
        })
    })
}