public void FindMissingSeat_WhenSuppliedWithList_ShouldFindMissingSeat()
{
var input = FileLoader.ReadListFromFile <string>("5.txt");
IEnumerable <(int Row, int Column)> rowsAndColumns = Day5.ConvertToRowAndColumn(input);
var missingRowAndColumn = Day5.FindMissingSeat(rowsAndColumns);
var missingSeatId = Day5.CalculateSeatId(new[] { missingRowAndColumn });
Assert.Equal(646, missingSeatId.Single());
}