using System;

public class Program

{

    public static void Main()

    {

         string bio = "{'@context': 'https://schema.org/','@type': 'Product','name': '10 dB Fixed Attenuator, BNC Male to BNC Female Brass Nickel Body Rated to 1 Watt Up to 2 GHz','mpn': 'PE7000-10','sku': 'PE7000-10','length': '','description': 'Key Specifications (Click on Data Sheet Above for Additional Details)., Design: Fixed, Maximum Frequency: 2 GHz, Impedance: 50 Ohm, Power Maximum: 1 Watt, VSWR Maximum: 1.2:1, Attenuation: 10 dB, Connector Series 1: BNC, Connector Gender 1: Male, Connector Series 2: BNC, Connector Gender 2: Female, Body Material: Brass, Body Plating: Nickel, 10 dB Fixed Attenuator, BNC Male to BNC Female Brass Nickel Body Rated to 1 Watt Up to 2 GHz, PE7000-10 is a fixed 10 dB attenuator from Pasternack. This 10dB attenuator is an in-line, resistive PI attenuator pad design. Our coaxial 50 Ohm attenuator is manufactured to precise RF / microwave industry specifications. This BNC attenuator has a male gender on side 1 and a BNC female connector on side 2. The Pasternack PE7000-10 10 dB attenuator is rated for up to 2 GHz. Our microwave attenuator is rated to 1 Watts at the stated attenuation value. Our fixed RF attenuator PE7000-10 is shipped same-day as purchased from Pasternack's production facility certified to ISO 9001:2015. This 10dB attenuator is part of over 40,000 RF, microwave and millimeter wave products that ship the same day worldwide, including custom cable assemblies.','image': [ 'https://www.pasternack.com/images/Product/medium/PE7000-10.jpg' , 'https://www.pasternack.com/images/Product/icon/PE7000-10.jpg','https://www.pasternack.com/images/Product/large/PE7000-10.jpg' ],'brand': {'@type': 'Brand','name': 'Pasternack'},'offers': {'@type': 'AggregateOffer','offerCount': '291','lowPrice': '54.21','highPrice': '63.04', 'priceCurrency': 'USD',' availability': 'https://schema.org/InStock', 'url': 'https://www.pasternack.com/10db-fixed-bnc-female-bnc-male-1-watt-attenuator-pe7000-10-p.aspx' }}";

        // Get first 12 characters substring from a string    

        int index=bio.IndexOf("Key Specifications");

        Console.WriteLine(index);

        string authorName = bio.Substring(0, index);    

        Console.WriteLine(authorName);    

    }

}