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