/* package whatever; // don't place package name! */

import java.util.*;
import java.lang.*;
import java.io.*;

/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		// your code goes here
Scanner sc = new Scanner(System.in);
    int[] arr = new int[7];
    for(int i = 0; i < 7; i++){
        int j = sc.nextInt();
        //sc.nextLine();
        arr[i] = j;
    }
    
    int sum = 0;
    int count = 0;
    int limit1 = arr[5];
    int limit2 = arr[6];
    for(int i = 0; i < 5; i++){
        if(arr[i] > limit1 && arr[i] < limit2){
            sum += arr[i];
            count++;
        }
    }
    System.out.println(sum / count);
	}
}