public void Problem04_should_return_expected_result()
{
// arrange, act
var actualResult = _problemsContainer.SolveProblem04();
// assert
Assert.AreEqual(906609, actualResult);
}
static void Main()
{
var container = new ProblemsContainer();
Console.WriteLine($"Problem 1 solution is {container.SolveProblem01()}");
Console.WriteLine($"Problem 2 solution is {container.SolveProblem02()}");
Console.WriteLine($"Problem 3 solution is {container.SolveProblem03()}");
Console.WriteLine($"Problem 4 solution is {container.SolveProblem04()}");
Console.ReadKey();
}