import java.util.Scanner;

public class Main {

    public static void main(String[] args){
        Scanner br = new Scanner(System.in);
        int cases = Integer.valueOf(br.nextLine());
        while (cases-- > 0) {
            char[] inputs = br.nextLine().replaceAll(" ", "").toCharArray();
            int length = inputs.length;
            int halflength = (int) (Math.ceil((double) inputs.length / 2));
            char[] results = new char[length+1];
            int j = 0;
            if (length == 1) {
                results = inputs;
            } else {
                for (int i = 0; i < length; i = i + 2) {
                    results[j] = inputs[i];
                    results[j + halflength] = inputs[i + 1];
                    j++;
                }
            }
            System.out.println(new String(results));
        }
    }
}