static void Main(string[] args)
{
var logWriterFactory = LogWriterFactory.GetFactory();
var clw = logWriterFactory.GetLogWriter <ConsoleLogWriter>();
var flw = logWriterFactory.GetLogWriter <FileLogWriter>();
var mlw = logWriterFactory.GetLogWriter <MultipleLogWriter>();
mlw.Add(flw);
mlw.Add(clw);
mlw.LogError("Input error");
mlw.LogInfo("WOW!");
mlw.LogWarning("Very warning");
}