let n = Int(readLine()!)!
var l = [[Int]]()
for _ in 1...n{
    var k = readLine()!.split(separator: " ").map{Int($0)!}
    k.removeFirst()
    l += [k.sorted(by: >)]
}
for i in l{
    for j in i{
        print(j,terminator: " ")
    }
    print()
}