using System;
using System.Text.RegularExpressions;
using System.Linq;
public class Test
{
public static void Main()
{
var tokens= Regex.Matches("com.example.is-this@myname", @"\w+|\W")
.Cast<Match>()
.Select(x=>x.Value)
.Reverse();
Console.WriteLine(string.Concat(tokens));
}
}
dXNpbmcgU3lzdGVtOwp1c2luZyBTeXN0ZW0uVGV4dC5SZWd1bGFyRXhwcmVzc2lvbnM7CnVzaW5nIFN5c3RlbS5MaW5xOwoKcHVibGljIGNsYXNzIFRlc3QKewoJcHVibGljIHN0YXRpYyB2b2lkIE1haW4oKQoJewoJCXZhciB0b2tlbnM9IFJlZ2V4Lk1hdGNoZXMoImNvbS5leGFtcGxlLmlzLXRoaXNAbXluYW1lIiwgQCJcdyt8XFciKQoJCS5DYXN0PE1hdGNoPigpCgkJLlNlbGVjdCh4PT54LlZhbHVlKQoJCS5SZXZlcnNlKCk7CgkJCgkJQ29uc29sZS5Xcml0ZUxpbmUoc3RyaW5nLkNvbmNhdCh0b2tlbnMpKTsKCX0KfQ==