list_rows_of_cars_and_levels.py

""" A 3-Dimensional Valet Service """

# 2D list of lists
#  - index cars by row, spot
lot_2d = [['Toyota','Audi','BMW'], # 0th row
          ['Lexus','Jeep'],        # 1st row
          ['Honda','Kia','Mazda']] # 2nd row

# 3D list of lists of lists
#  - index cars by floor, row, spot
lot_3d = [[['Telsa','Fiat','BMW'], # 0th floor
           ['Honda','Jeep'],        
           ['Saab','Kia','Ford']],
          [['Subaru','Nissan'],    # 1st floor
           ['Volvo']],
          [['Mazda','Chevy'],      # 2nd floor
           [],
           ['Volkswagen']]]

# indexing 2D lists
print(lot_2d)          # 2D list of parking lot
print(lot_2d[2])       # 1D list of cars in row 2
print(lot_2d[2][1])    # car parking in row 2, spot 1

# indexing 3D lists
print(lot_3d)          # 3D list of multi-story garage
print(lot_3d[0])       # 2D list of cars on floor 0
print(lot_3d[0][2])    # 1D list of cars on floor 0, row 2
print(lot_3d[0][2][1]) # car parked on floor 0, row 2, spot 1

# accessing all cars in the multi-story garage
for floor in lot_3d:    # cycle through each floor in the multi-story garage
    for row in floor:   # cycle through each row in the floor
        for car in row: # cycle through each car in the row
            print(car)