import java.util.*;

public class q4
{
    public static void main (String[] args)
    {
        Scanner s = new Scanner(System.in);


        String[][] grid = new String[4][4];

        int counter = Integer.parseInt(s.next());

        for (int i = 1; i <=counter; i++)
        {
            for (int j = 0; j < grid.length; j++)
            {
                for (int k = 0; k < grid[0].length; k++)
                {
                    grid[j][k] = s.next();
                }
            }

            //Working on the actual checking process
            /*for (int j = 0; j < grid.length; j++)
            {
                for (int k = 0; k < grid[0].length; k++)
                {
                    grid[i][j] = s.next();
                }
            }*/
        }
    }
}