#nullable enable

#region
var (_input, _iter) = (Array.Empty<string>(), 0);
T I<T>() where T : IParsable<T>
{
    while (_iter >= _input.Length) (_input, _iter) = (Console.ReadLine()!.Split(' '), 0);
    return T.Parse(_input[_iter++], null);
}
#endregion

static T[] Range<T>(int n, Func<T> F) => Enumerable.Range(0, n).Select(_ => F()).ToArray();

string Solve()
{
    var n = I<int>();
    var az = Range(n, I<long>);
    var bz = Range(n, I<long>);
    var s = az.Sum();
    var bi = -1;
    var bv = s;
    var caz = new (long, int)[n];
    for (var i = 0; i < n; i++) caz[i] = (az[i], i);
    Array.Sort(caz);
    for (var i = 0; i < n; i++)
    {
        var av = caz[i].Item1;
        s = s + bz[i] - av;
        if (s > bv)
        {
            bi = i;
            bv = s;
        }
    }
    var ans = new char[n];
    ans.AsSpan().Fill('0');
    for (var i = 0; i <= bi; i++)
    {
        var j = caz[i].Item2;
        ans[j] = '1';
    }
    return new string(ans);
}
var t = I<int>();
var ans = Range(t, Solve);
Console.WriteLine(string.Join(Environment.NewLine, ans));