using System;
using System.IO;

public class ForgetCode
{
    public static void Main()
    {
        string str = "Coming from Forget Code";
        char[] b = new char[str.Length];

        using (StringReader sr = new StringReader(str))
        {
            // Read 15 characters from the string into the array.
            sr.Read(b, 0, 15);
            Console.WriteLine(b);
            
            // Read the rest of the string starting at the current string position. 
            // Put in the array starting at the 6th array member.
            sr.Read(b, 6, str.Length-15);
            Console.WriteLine(b);
        }
    }
}

sr.Read(b, 6, str.Length-15);
Console.WriteLine(b);