I want to use windows console in UWP. I know that there is System.Diagnostic.Debug but it provides me only methods to display message in windows console and I want          
        
System.Console is not available for UWP apps. If you want to create console app, use .NET Framework or .NET Core not Universal Windows Platform. The System.Diagnostics.Debug class is just for debugging purposes and users don't see its output.
However there are many other ways how to get user's input in UWP app, for example TextBox.