Write a C# Sharp program to compare two substrings using different cultures and ignoring the case of the substrings

// Example for String.Compare(String, Int32, String, Int32, Int32, Boolean, CultureInfo)
using System;
using System.Globalization;
class Example23 {
    public static void Main() {
//                 01234567
    String str1 = "COMPUTER";
    String str2 = "computer";
    String str;
    int result;
    Console.WriteLine();
    Console.WriteLine("\n str1 = '{0}', str2 = '{1}'", str1, str2);
    Console.WriteLine("Ignore case, Turkish culture:");
    result = String.Compare(str1, 4, str2, 4, 2, true, new CultureInfo("tr-TR"));
    str = ((result < 0) ? "less than" : ((result > 0) ? "greater than" : "equal to"));
    Console.Write("Substring '{0}' in '{1}' is ", str1.Substring(4, 2), str1);
    Console.Write("{0} ", str);
    Console.WriteLine("substring '{0}' in '{1}'.", str2.Substring(4, 2), str2);
    Console.WriteLine();
    Console.WriteLine("Ignore case, invariant culture:");
    result = String.Compare(str1, 4, str2, 4, 2, true, CultureInfo.InvariantCulture);
    str = ((result < 0) ? "less than" : ((result > 0) ? "greater than" : "equal to"));
    Console.Write("Substring '{0}' in '{1}' is ", str1.Substring(4, 2), str1);
    Console.Write("{0} ", str);
    Console.WriteLine("substring '{0}' in '{1}'.\n\n", str2.Substring(4, 2), str2);
    }
}