Write a C# Sharp program to compare (less than, greater than, equal to ) two substrings

// Example for String.Compare(String, Int32, String, Int32, Int32)
using System;
class Example21
{
    public static void Main() {
//                 01234567
    String str1 = "computer";
    String str2 = "system";
    String str;
    int result;
    Console.WriteLine();
    Console.WriteLine("str1 = '{0}', str2 = '{1}'", str1, str2);
    result = String.Compare(str1, 2, str2, 0, 2);
    str = ((result < 0) ? "less than" : ((result > 0) ? "greater than" : "equal to"));
    Console.Write("Substring '{0}' in '{1}' is ", str1.Substring(2, 2), str1);
    Console.Write("{0} ", str);
    Console.WriteLine("substring '{0}' in '{1}'.", str2.Substring(0, 2), str2);
    }
}