using System;

using System.IO;

​

public class Test

{

    static void Solution(TextReader sIn, TextWriter sOut)

    {

        int cases = int.Parse(sIn.ReadLine());

        for (int c = 0; c < cases; ++c) {

            int size = int.Parse(sIn.ReadLine());

            bool evenM = (size & 1) == 0;

            for (int row = 0; row < size; ++row) {

                bool oddR = (row & 1) == 1;

                for (int col = 0; col < size; ++col) {

                    bool last = col == size - 1;

                    int num = (row * size) + col + 1;

                    if (evenM && oddR) {

                        num = (num - col) + (size - col) - 1;

                        if (last) {

                            sOut.Write(num);

                        } else {

                            sOut.Write(String.Format("{0} ",num));

                        }

                    } else if (last) {

                            sOut.Write(num);

                        } else {

                            sOut.Write(String.Format("{0} ",num));

                    }

                }

                sOut.WriteLine();

            }

        }

    }

    static void MakeFile()

    {

        using(StreamWriter sw = new StreamWriter("text.txt"))

        {

            sw.WriteLine(1);

            sw.WriteLine(2);

        }

    }

    public static void Main()

    {

        MakeFile();

        while(true)

        {

            try

            {

                StreamReader sr = new StreamReader("text.txt");

                Solution(sr,Console.Out);

                return;

            }

            catch(Exception e)

            {

                MakeFile();

            }           

        }       

    }

}