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 C# (Mono 4.6.2.0) (judge verdict: Accepted)

using System;
using System.Linq;

namespace B___Contests
{
    class Program
    {
        static void Main (string[] args)
        {
            var n = int.Parse (Console.ReadLine ());
            var input = Console.ReadLine ().Split (' ');
            var a = int.Parse (input[0]);
            var b = int.Parse (input[1]);
            var p = new int[n];
            input = Console.ReadLine ().Split (' ');
            for (var i = 0; i < n; i++)
            {
                p[i] = int.Parse (input[i]);
            }
            var pro = new int[3];
            foreach (var i in p)
            {
                if (i <= a)
                    pro[0]++;

                else if (a < i && i <= b)
                    pro[1]++;

                else
                    pro[2]++;
            }
            Console.WriteLine (pro.Min ());
        }
    }
}