Marinada '23

[lang = hr] Nakon dvacet godina Yusuf odvede Mirzu u Đedinu karatanu. Đedo Yusfu daje $3$ paketa karata u kojima je po $6$ predodređenih jedinstvenih karata u nasumičnom poretku. Yusuf bira redoslijed kojim otvara paketa i kada ih otvara stavlja karte u niz u poretku u kojem su bile u tucetu. Koliko različitih nizova bi se moglo pojaviti? [/lang] [lang = en] After twenty years Yusuf showed Mirzo grandpas card store. Grandpa gives Yusuf $3$ card packs with $6$ randomly ordered unique cards each. Yusuf chooses the order in which he opens the packs and when he opens them he puts the cards in the given order onto the table. How many different sequences can appear? [/lang]