import java.util.Scanner // fun _Do() { val a = scan.next() val b = scan.next() println(b + " " + a) } var scan = Scanner(System.`in`) fun main( argv : Array ) { _Do() } fun strings(N:Int):Array = Array(N,{scan.next()}) fun ints(N:Int):Array = Array(N,{scan.nextInt()}) fun longs(N:Int):Array = Array(N,{scan.nextLong()})