Carrots are good for you! First of all, they give you
good night vision. Instead of having your lights on at home,
you could eat carrots and save energy! Ethnomedically, it has
also been shown that the roots of carrots can be used to treat
digestive problems. In this contest, you also earn a carrot for
each difficult problem you solve, or huffle-puff problems as we
prefer to call them.
You will be given the number of contestants in a
hypothetical contest, the number of huffle-puff problems that
people solved in the contest and a description of each
contestant. Now, find the number of carrots that will be handed
out during the contest.
Input starts with two integers $1 \le N, P \le 1\, 000$ on a single
line, denoting the number of contestants in the contest and the
number of huffle-puff problems solved in total. Then follow
$N$ lines, each consisting
of a single non-empty line in which the contestant describes
him or herself. You may assume that the contestants are good at
describing themselves, in a way such that an arbitrary
5-year-old with hearing problems could understand it.
Output should consist of a single integer: the number of
carrots that will be handed out during the contest.
|Sample Input 1
||Sample Output 1
|Sample Input 2
||Sample Output 2