Is it my browser? or is codeforces having a problem with two lists(source code and codeforces tags? this bar has very weird behavior if you click in the place you need to write or in the bar that has fonts and all of these things it will make a quick refresh and the problem will happen(the list will open under the place we write), is it a problem because of my browser (I'm using google chrome)? or is everyone else having the same problem? here's a picture of how I see the problem page(the cursor on the codeforces tags):

picture before any click:

Hello everyone. As a person that extremely enjoys competitve programming, and thus enjoys Codeforces problems I really want to adress this issue.

Problem link: http://codeforces.net/contest/321/problem/C

My submission (Wrong code and get AC): http://codeforces.net/contest/321/submission/26788450

rng_58 submission (Right Code and get AC too): http://codeforces.net/contest/321/submission/3973635

Input:

60

1 2 1 3 3 4 3 5 5 6 5 7 7 8 7 9 9 10 9 11 11 12 11 13 13 14 13 15 15 16 15 17 17 18 17 19 19 20 19 21 21 22 21 23 23 24 23 25 25 26 25 27 27 28 27 29 29 30 29 31 31 32 31 33 33 34 33 35 35 36 35 37 37 38 37 39 39 40 39 41 41 42 41 43 43 44 43 45 45 46 45 47 47 48 47 49 49 50 49 51 51 52 51 53 53 54 53 55 55 56 55 57 57 58 57 59 59 60

OUTPUT: (rng_58) red coder it's the right output

E F D E E F C D E F D E E F B C E F D E C D E F D E E F A B E F D E E F C D E F D E E F B C E F D E E F C D E F D E E F

my OUTPUT:

Impossible!

This picture explain my test case:

http://imgur.com/a/l9WBH