{ NOTE: it is recommended to use this even if you don't understand the following code }

const
    MAXN = 100;

var
    N, T, i, test : LongInt;
    P             : Array[0..MAXN-1] of LongInt;
    ans           : AnsiString;

begin
{
    uncomment the two following lines if you want to read/write from files
    assign(input,  'input.txt');  reset(input);
    assign(output, 'output.txt'); rewrite(output);
}

    ReadLn(T);
    for test:=1 to T do begin
        ReadLn();
        ReadLn(N);
        
        for i:=0 to N-1 do
            Read(P[i]);
        ReadLn();
        
        ans := '';
        
        { INSERT YOUR CODE HERE }
        
        
        WriteLn(ans);
    end;

end.