Test No Sol

easy

Hello test
&lt;a href="https://www.youtube.com/embed/_Mj-Pe86Zt8"&gt;https://www.youtube.com/embed/_Mj-   #  $  %  ^ Pe86Zt8&lt;/a&gt;
!@#$%^&*( )_+ - = { } | : " &lt; &gt; ? [ ]  ; ' , . /   &#nnnn;


&lt;img src="http://pepcoding.com/resources/ojquestionresource/images/shell-rotate.jpg"&gt;


&lt;img src="http://pepcoding.com/resources/ojquestionresource/images/intersection-of-linked-list.jpeg"&gt;

Input Format

ddd

Output Format

dddd

Constraints

test

Notice

Try First, Check Solution later

1. You should first read the question and watch the question video.
2. Think of a solution approach, then try and submit the question on editor tab.
3. We strongly advise you to watch the solution video for prescribed approach.

Example

Input

Output

Count Palindromic Subsequences

Stock Span