func main()
	var n: int :: cui@inputInt()
	for(1, n)
		var k: int :: cui@inputInt()
		var a: []int :: #[k]int
		for i(0, k - 1)
			do a[i] :: cui@inputInt()
		end for
		do a.sort()
		do a.reverse()
		
		for i(0, k - 1)
			do cui@print("\{a[i]}" ~ (i = k - 1 ?("\n", " ")))
		end for
	end for
end func