import java.util.Scanner;


public class Lista {
   
   static int[] num;
   static boolean[] sum;
   
   public static void main (String[] args) {
      Scanner in = new Scanner(System.in);
      
      int n = in.nextInt();
      num = new int[n];
      for (int i = 0; i< n; ++i) {
         num[i] = in.nextInt();
      }
      int a = in.nextInt();
      int b = in.nextInt();
      int res = 0;
      int max = num[0];
      sum = new boolean[b+1];
      sum[num[0]]= true;
      for (int i= 1; i< n; ++i) {
         for (int j= max; j > 0; --j) {
            if (sum[j]) {
               int pos = num[i] + j;
               if ((a <= pos) && (pos <= b) && (!sum[pos])) {
                  res++;
               }
               if (pos <= b) {
                  sum[pos] = true;
               }
            }
         }
         sum[num[i]] = true;
         if (max + num[i] <= b) {
            max+= num[i];
         }
      }
      System.out.println(res);
   }   
}