CCC has just finished, and the organizer is trying to choose $N$ contestants to put on the honour roll. If someone who gets a score of $x$ is on the honour roll, then to keep the competition fair, every contestant who gets a score greater or equal to $x$ should also be on the honour roll. Write a program to determine the maximum number of people who will be on the honour roll so that the number is not greater than $N$.

Input Specification

The first line contains $M$ and $N$ ($1\le N\le M\le 2\times {10}^4$), indicating the total number of contestants and the expected number of people on the honour roll, respectively.

The next line contains $M$ space-separated integers $a_i$ ($0\le a_i\le 75$), representing the score of $i$-th contestant.

Output Specification

Output one integer denotes the maximum number of people on the honour roll to keep competition fair and not greater than $N$.

Sample Input 1

5 2
1 2 3 3 4

Sample Output 1

1

Explanation

The organizer cannot only put $2$ contestants on the honour roll. The optimal way is to only put the contestant who scored $4$ on the honour roll.

Sample Input 2

5 3
2 2 2 2 4

Sample Output 2

1

Sample Input 3

8 5
1 1 2 2 3 3 3 3

Sample Output 3

4