function Main(input) {
  let data = input.split("\n");
  // let data = input.split(" ");
  // let  = data[0];
  // let  = data[1];

  for (i=1; i<data.length-1; i++) {
    array = data[i].split(" ");
    array.shift();
    array.sort((a,b)=>b-a);
    console.log(array.join(' '));
  }
}
Main(require("fs").readFileSync("/dev/stdin", "utf8"));