using System;

using System.Linq;

using System.Text.RegularExpressions;

public class Program

{

    public static void Main()

    {

        string str = "this is my teSt";

        if (str.Any(c => char.IsUpper(c)))

        {

        Console.WriteLine("true upPattern");

        }

        else 

        {

        Console.WriteLine("true LowPattern");

        }

​

    }

}