static void Main(string[] args)
{
Task16.ExecuteTask();
Task17.ExecuteTask();
Task18.ExecuteTask();
// Task19 can take a lot of time
Task19.ExecuteTask();
}
public void TestCountingSundays()
{
var task = new Task19();
Assert.AreEqual(171, task.Run(), $"Count of Sundays fell on the first of the month during the twentieth century (1 Jan 1901 to 31 Dec 2000) is incorrect");
}