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 (GCC 5.4.1) (judge verdict: Runtime Error)

#include<stdio.h>
int main(void){
  int N,A,B,P[20],i;
  int sma=0,mid=0,big=0;
  int times=0;
  scanf("%d",&N);
  scanf("%d %d",&A,&B);
  for(i=0;i<N;i++){
      scanf("%d",&P[i]);
  }
  for(i=0;i<N;i++){
      if(P[i]<=A){
          sma++;
      }
      else if((P[i]>A)&&(P[i]<=B)){
          mid++;
      }
      else if(P[i]>B){
          big++;
      }
  }
    times=sma;
  if(sma>mid){
      times=mid;
  }
  if(mid>big){
      times=big;
  }

  printf("%d",times);
  return 0;
}