import kotlin.test.*
import java.util.*

fun main(args: Array<String>) {
//sampleStart
val chars = listOf('a', 'λ', 'A', '1', '+')
val (lowerCases, notLowerCases) = chars.partition { it.isLowerCase() }
println(lowerCases) // [a, λ]
println(notLowerCases) // [A, 1, +]
//sampleEnd
}