Marinada '24

[lang=hr] Da se njegova mama ne bi ljutila, Josip mora počistiti svoju sobu. No, svi znamo da prije nego počne čistiti mora odabrati playlistu pjesama koje će slušati dok čisti. Odabrao je svojih $10$ najdražih pjesama. Ako stisne shuffle, koliko različitih redoslijeda može dobiti? [/lang] [lang=en] To avoid making his mom angry, Josip needs to clean his room. But, as we all know, before he starts cleaning, he has to choose a playlist of songs to listen to while he works. He has picked his $10$ favorite songs. If he hits shuffle, how many different orders can he get? [/lang]