fffffffff   uuuuuu     uuuuu   ccccccccccccc  kkkkk   uuuuuuuuu fffffffff   uuuuuu     uuuuu   ccccccccccccc fffff       uuuuuu     uuuuu   cccc fffffffff   uuuuuu     uuuuu   cccc fffffffff   uuuuuu     uuuuu   cccc fffff       uuuuuu     uuuuu   cccc fffff       uuuuuuuuuuuuuuuu   cccccccccccc fffff       uuuuuuuuuuuuuuuu   cccccccccccc