input: Write a python function to calculate the total bill for given orders from a menu.
  assert calculate_total_bill(["Fried Noodles", "Tofu Soup", "Fruit Salad"]) == 65
  assert calculate_total_bill(["Fried Rice", "Fried Rice", "Tofu Soup"]) == 70
  assert calculate_total_bill(["Fruit Salad", "Fruit Salad"]) == 30
output: def calculate_total_bill(orders):
      menu = {
          "Fried Noodles": 25,
          "Tofu Soup": 20,
          "Fruit Salad": 15,
          "Fried Rice": 25
      }
      total_bill = sum(menu[item] for item in orders)
      return total_bill