1 #include <iostream>
 2 #include <cstdio>
 3 
 4 using namespace std;
 5 
 6 int main()
 7 {
 8     int n,a,ans;
 9     int num[1010];
10     while (~scanf("%d",&n))
11     {
12         ans=0;
13         if (n==0)
14             break;
15         for (int i=0;i<n;i++)
16         {
17             scanf("%d",&num[i]);
18         }
19         scanf("%d",&a);
20         for (int i=0;i<n;i++)
21         {
22             if (num[i]==a)
23                 ans++;
24         }
25         printf ("%d\n",ans);
26     }
27     return 0;
28 }