Gimme Some Pointers!

You're in the middle of a COMP1511 tutorial, covering pointer syntax. The tutor is going through referencing and dereferencing with an example variable c, and asking the class for answers. You've definitely prepared for this class, and you know that & is used to reference the variable (make a pointer of a variable) and that * is used to dereference it (refer to the value where the pointer is at). For example, &c technically refers to a pointer to c.

The tutor is very keen, and wants everyone to answer at least one question. It'll be your turn soon - can you make a program that gives the right answer?

Input Format
The first line of input contains an integer $N$, the number of characters behind the variable c.

The second line of input contains a string of $N$ characters, containing only & and *, that represent the characters behind c.

Constraints
For all test cases:

$1 \le N < 1000$.

You are guaranteed that the string contains only & and *, and no other characters.

Output Format
You are to output a human-readable version of the variable represented by the input followed by our variable c. For example:

• An empty string should just output c, since c just represents the value c.
• & should output pointer to c, since &c does represent a pointer to c.
• &&& should output pointer to pointer to pointer to c, since by having 3 &s we've referenced c 3 times.
• *&& should output pointer to c, since working from right to left in *&&c, we reference c, reference it again, then dereference it to get it back down to one total reference.

If, at any point, we dereference c itself (which shouldn't be possible), you should output not possible. An example of such a case would be *, which represents *c.

Examples