import java.io.*; import java.util.*; public class Main { public static void main(String[] args) { // TODO Auto-generated method stub Scanner input = new Scanner(System.in); int t=input.nextInt(); input.nextLine(); for(int i=0;i<t;i++) { String str=input.nextLine(); char a[]=str.toCharArray(); for(int j=0;j<str.length();j=j+2) { char temp=a[j]; a[j]=a[j+1]; a[j+1]=temp; } String str1=String.valueOf(a); System.out.println(str1); } } }