static async Task Main()
{
// receive messages from the subscription
//Console.SetOut(oldOut);
using (var cc = new ConsoleCopy("output.json")) {
Console.WriteLine("The application started at {0:HH:mm:ss.fff}", DateTime.Now);
var task1 = Problem2.ReceiveMessagesFromSubscriptionAsync();
var task2 = Problem1.ReceiveMessagesFromSubscriptionAsync();
await Task.WhenAll(task1, task2);
Console.WriteLine("Done");
}
}
