using System;

public class Program

{

    public static void Main()

    {

        string blankString = "";

        bool isBlank = string.IsNullOrWhiteSpace(blankString);

        Console.WriteLine(isBlank);

        string notBlankString = "im not blank"; 

        isBlank = string.IsNullOrWhiteSpace(notBlankString);

        Console.WriteLine(isBlank);

    }

}