text: WEEKDAYS = (
      (0, "Monday"),
      (1, "Tuesday"),
      (2, "Wednesday"),
      (3, "Thursday"),
      (4, "Friday"),
      (5, "Saturday"),
      (6, "Sunday"),
  )
  
  VOLUMES = (
      (0, 0),
      (1, 10),
      (2, 20),
      (3, 30),
      (4, 40),
      (5, 50),
      (6, 60),
      (7, 70),
      (8, 80),
      (9, 90),
      (10, 100)
  )