using System;

public class Program

{

    public static void Main()

    {

        string input = "004600060000010103002022520220916162608230065507085102TH9104";

        var data = System.Text.ASCIIEncoding.ASCII.GetBytes(input);

        var hex = Crc16.Crc16Ccitt(data).ToString("X2");

        Console.WriteLine(hex);

    }

    public static class Crc16

    {

        public static ushort Crc16Ccitt(byte[] bytes)

        {

            const ushort poly = 0x1021;

            ushort[] table = new ushort[256];

            ushort initialValue = 0xffff;

            ushort temp, a;

            ushort crc = initialValue;

            for (int i = 0; i < table.Length; ++i)

            {

                temp = 0;

                a = (ushort)(i << 8);

                for (int j = 0; j < 8; ++j)

                {

                    if (((temp ^ a) & 0x8000) != 0)

                        temp = (ushort)((temp << 1) ^ poly);

                    else

                        temp <<= 1;

                    a <<= 1;

                }

                table[i] = temp;

            }

            for (int i = 0; i < bytes.Length; ++i)

            {

                crc = (ushort)((crc << 8) ^ table[((crc >> 8) ^ (0xff & bytes[i]))]);

            }

            return crc;

        }

    }

}