Question: [Problem A]

We need more test cases for Problem A.
Would you help us with that?

Input:
1
5
He-a

Output:
HeaeH

Question: [Problem J]

When do cables cross each other?

If there is a cable from i to j and there is a cable from x to y and (i-x)*(j-y) < 0

Question: [Problem E]

What is the answer for n=0?

N > 0. The problem statement is corrected.

Question: [Problem E]

what is the answer for n=1?

Edoce:1, Rahs:1

Question: [Problem C]

Is it possible that all routers are boundary routers?

No

Question: [General]

MOSABEGHE TA SAAT CHANDE ?

The contest will be finished at 19:30:00

Question: [Problem L]

what is the max value of M?

1 <= M <= 50
The problem statement updated

Input:
1
3 5

Output:
3.110

Question: [Problem C]

No computer can be connected to the boundary routers.

No computer can be connected to the boundary routers.

Question: [Problem J]

age K sefr bashe bayad endl ezafe chap konim ya na ?

In that case, the list of the cables are empty. So you should print an empty line for that.

Question: [Problem A]

can you give an example of reversing the direction ?

Input:
1
5
He-a

Output:
HeaeH

Question: [Problem E]

Can N be equal to 0? If yes what should the output be?