/* package whatever; // don't place package name! */
//count all subarrays with sum equals to k using prefixsum
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
	{    
  Scanner sc = new Scanner(System.in);
      int n = sc.nextInt();
       int [ ] arr = new int [n+1];
        int [ ] prefixSum=new int [n+1];
     for (int i = 1 ; i <=n ;i++){
             arr[i]=sc.nextInt();
          };
     for (int j = 1 ; j<=n ;j++){
         prefixSum[j] = prefixSum[j-1]+arr[j];
          };
    int count = 0;
    int k = sc.nextInt();
	for (int i = 1 ; i<=n; i++){
       for (int j = 1 ; j<=i;j++ ){
         if (prefixSum[i] - prefixSum[j-1]==k){
         count ++;
            }
          }
        }
         System.out.println(count);
	}
}

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NgoxIDIgMyAtMiA1IDEKNQoK

6
1 2 3 -2 5 1
5