def add_shuffled_entrances(sectors, region_list, entrance_list):
    for sector in sectors:
        for region in sector.regions:
            if (region.name in region_list):
                entrance_list.append(region.name)
def add_shuffled_entrances(sectors, region_list, entrance_list):
    for sector in sectors:
        for region in sector.regions:
            if (region.name in region_list):
                entrance_list.append(region.name)