using System.Threading.Tasks;
public static void Main()
private static async Task MethodA()
Console.WriteLine("MethodA!");
Console.WriteLine("MethodA!");
Console.WriteLine("MethodA!");
Console.WriteLine("MethodA!");
Console.WriteLine("MethodA!");
Console.WriteLine("MethodA!");
private static async Task MethodB()
Console.WriteLine("MethodB!");
Console.WriteLine("MethodB!");
Console.WriteLine("MethodB!");
Console.WriteLine("MethodB!");
Console.WriteLine("MethodB!");
Console.WriteLine("MethodB!");