Problem:
Score : 200 points

Problem Statement

You have written N problems to hold programming contests.
The i-th problem will have a score of P_i points if used in a contest.

With these problems, you would like to hold as many contests as possible under the following condition:

A contest has three problems. The first problem has a score not greater than A points, the second has a score between A + 1 and B points (inclusive), and the third has a score not less than B + 1 points.

The same problem should not be used in multiple contests.
At most how many contests can be held?

Constraints

3 \leq N \leq 100

1 \leq P_i \leq 20 (1 \leq i \leq N)

1 \leq A < B < 20

All values in input are integers.

Input

Input is given from Standard Input in the following format:

N
A B
P_1 P_2 ... P_N

Output

Print the answer.

Sample Input 1

7
5 15
1 10 16 2 7 20 12

Sample Output 1

2

Two contests can be held by putting the first, second, third problems and the fourth, fifth, sixth problems together.

Sample Input 2

8
3 8
5 5 5 10 10 10 15 20

Sample Output 2

0

No contest can be held, because there is no problem with a score of A = 3 or less.

Sample Input 3

3
5 6
5 6 10

Sample Output 3

1

Solution in Java8 (OpenJDK 1.8.0) (judge verdict: Accepted)

import java.util.Arrays;
import java.util.List;
import java.util.Scanner;
import java.util.stream.Collectors;

public class Main {
  public static void main(String[] args) {
    Scanner scan = new Scanner(System.in);
    scan.nextLine();
    final int A = scan.nextInt();
    final int B = scan.nextInt();
    scan.nextLine();
    String[] splited = scan.nextLine().split(" ");
    List<Integer> list = Arrays.stream(splited).map(Integer::parseInt).collect(Collectors.toList());
    long list1 = list.stream().filter(l -> 1 <= l && l <= A).count();
    long list2 = list.stream().filter(l -> A < l && l <= B).count();
    long list3 = list.stream().filter(l -> B < l && l <= 20).count();

    long result = Math.min(Math.min(list1, list2), list3);
    System.out.println(result);
  }
}