#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()!.Trim().Split(' '), 0);
    return T.Parse(_input[_iter++], null);
}
#endregion

var n = I<int>();
var s = "Hello world!";
var ans = new List<string>();
for (var i = 0; i < n; i++) ans.Add(s);
Console.WriteLine(string.Join(Environment.NewLine, ans));