
    Write a function that extracts the zone designation (last character) from each parking spot's tracking code in a collection of urban parking space identifiers to facilitate zone-based space management and allocation tracking. The function should process a tuple of alphanumeric parking spot codes and return only the zone indicators that appear at the end of each code.
    

    
def extract_rear(test_tuple):
    """
    Write a function that extracts the zone designation (last character) from each parking spot's tracking code in a collection of urban parking space identifiers to facilitate zone-based space management and allocation tracking. The function should process a tuple of alphanumeric parking spot codes and return only the zone indicators that appear at the end of each code.
    

    """
def extract_rear(test_tuple):
    """
    Write a function that extracts the zone designation (last character) from each parking spot's tracking code in a collection of urban parking space identifiers to facilitate zone-based space management and allocation tracking. The function should process a tuple of alphanumeric parking spot codes and return only the zone indicators that appear at the end of each code.
    

    """
    res = list((sub[len(sub) - 1] for sub in test_tuple))
    return res