data class Student( 
       val name: String, 
       val grade: Double, 
       val passing: Boolean 
    ) 
 
    val students = listOf( 
       Student("John", 4.2, true), 
       Student("Bill", 3.5, true), 
       Student("John", 3.2, false), 
       Student("Aron", 4.3, true), 
       Student("Jimmy", 3.1, true) 
    ) 
 
    val bestStudents = students.filter { it.passing }
       .withIndex() 
       .sortedBy { it.value.grade } 
       .take(3)  
       .sortedBy { it.index } 
       .map { it.value }

fun main(args: Array<String>) {
	println(bestStudents.map { it.name })
}