1) Pauline has 1 dictionary, 1 comic and 5 different fictions. She wants to put 4 books on the lower shelf and 3 books on the upper shelf. If the dictionary and the comic are put in different shelf, find the number of arrangements of the books.
2) 6 children are arranged to sit in a row. And each one raises one hand before a teacher takes a photo of them. In how many ways can the children be arranged to sit with each one raising one hand.