public string Shuffle(string s)
{
if (s == null)
{
return(null);
}
if (s.Length == 1)
{
return(s);
}
//Move the first character to the end.
s = s.Substring(1) + s.Substring(0, 1);
//Reverse the order of the characters.
s = _stringService.Reverse(s);
//Write the results to a database table.
_databaseService.LogResults(s);
return(s);
}