import java.util.Scanner;

public class dataku {
public static void main(String[] args){
Scanner input = new Scanner(System.in);
System.out.print("Masukan jumlah data =");
int data = input.nextInt();

for(int i=1;i<=data;i++){
System.out.print("data = ");
// int data1=input.next();

String data1 = input.next();
String data2 = input.next();
data2 = data2 +"" +data1;
System.out.println("Hasil : " +data2);
}
}