## Where is it?

*Difficulty level:*

Consider the numbers obtained from the number 12345, making all permutations of their digits. Putting these numbers in ascending order, what is the place occupied by the number 43521?

*Difficulty level:*

Consider the numbers obtained from the number 12345, making all permutations of their digits. Putting these numbers in ascending order, what is the place occupied by the number 43521?