public void FindMaxFeedbackTest()
 {
     Day07.FindMaxFeedBack(new[] { 3, 26, 1001, 26, -4, 26, 3, 27, 1002, 27, 2, 27, 1, 27, 26,
                                   27, 4, 27, 1001, 28, -1, 28, 1005, 28, 6, 99, 0, 0, 5 }
                           ).Should().Be(139629729);
 }