original: the fourth and fifth digits designate the number of the urban area -lrb- in a district-free city -rrb- or the district -lrb- in a city with districts -rrb- .
simplifications: the fourth and fifth numbers are the amount of the urban area -lrb- in a district-free city -rrb- or the district -lrb- in a city with districts -rrb- . the fourth and fifth digits designate the number of the urban area in a district-free city , or the district in a city with districts . the fourth and fifth digits designate the number of urban area or the district . the fourth digit designates the number of the urban area in a district-free city and the fifth digit designates the number of the district in a city with districts . the fourth and fifth digits are the number of the urban area or district . the fourth and fifth digits identify the number of the urban area -lrb- in a district-free city -rrb- or the district -lrb- in a city with districts -rrb- . the fourth and fifth digits designate the act of the urban area -lrb- in a district-free city -rrb- or the district -lrb- in a city with districts -rrb- . the fourth and fifth digits represented the number of the urban area or the district .