C# Retrieve/Get Last Character

Way to retrieve last character of the string.

public string GetLast(string s, int tail_length)
{
            if (tail_length >= s.Length)
                return s;
            return s.Substring(s.Length - tail_length);
}

eg.


string OneYearLastChar = GetLast(System.DateTime.Now.Year.ToString(), 1);
- Get Last Character

string TwoLastChar = GetLast(System.DateTime.Now.Year.ToString(), 2);
- Get Last Two Character