using System;
using System.Collections.Generic;
using System.ComponentModel;

namespace yukicode
{
    class No1475
    {
        static void Main(string[] args)
        {
            int watchNum = int.Parse(Console.ReadLine());
            Dictionary<int, int[]> watchParts = new Dictionary<int, int[]>();

            for(int i = 0; i < watchNum; i++)
            {
                string[] watchInfo = Console.ReadLine().Split(' ');
                int partsNum = int.Parse(watchInfo[0]);
                int[] parts = new int[partsNum];

                for(int j = 0; j < partsNum; j++)
                {
                    parts[j] = int.Parse(watchInfo[j + 1]);
                }

                Array.Sort(parts);
                Array.Reverse(parts);
                watchParts.Add(i, parts);
            }

            for(int i = 0; i < watchNum; i++)
            {
                string str = "";
                for(int j = 0; j < watchParts[i].Length; j++)
                {
                    str += watchParts[i][j] + " ";
                }
                Console.WriteLine(str.Substring(0, str.Length - 1));
            }

            return;
        }
    }
}