let queryCount = Int(readLine()!)!

for _ in 0..<queryCount {
    var input = readLine()!.split(separator: " ").map { Int($0)! } [1...]
    input.sort(by: >)
    
    var line = ""
    for num in input {
        line += String(num) + " "
    }
    line.removeLast()
    
    print(line)
}