Vrijeme: 19:10
Sibirski plavac | The legendary Siberian blue #1
Yusuf za sudjelovanje na turniru treba složiti špil babuški. Yusuf na raspolaganju ima točno babuški te ih je sortirao po jačini. Svakoj babuški je zatim dao broj od do koja označava koliko jako struška druge mamuške. Kako ne bi na turniru bio nepošten i bio preslab, Yusuf je odlučio da će na turnir ići sa špilom jačine barem . Sad ga zanima, na koliko načina to može učiniti?
In order to participate in the tournament, Yusuf needs to stack a deck of babushki. Yusuf has exactly of babushki at his disposal, and he sorted them by strength. He then gave each babushka a number from to that indicates how hard she is beating the other babushkas. In order not to be unfair in the tournament and be too weak, Yusuf decided that he would go to the tournament with a deck with a strength of at least . Now he is interested in how many ways can he do it?