Some electoral systems provide for subdivided constituencies. These are subdivisions of the constituencies used as the basis for the election and in which the candidates stand. When the seats are distributed, the mandates are attributed between the various lists at the level of the basic constituencies. Once this operation has been carried out, the seats obtained by each list are then distributed among the various subdivided constituencies, generally in proportion to the votes obtained in each of those constituencies. Within those constituencies themselves, candidates are then elected in the order in which they appear on the lists.