#include <iostream>
using namespace std;
int main() {
int n;int cul=0;
while(scanf("%d",&n)!=EOF){
if(n==0)break;
int a[n];
for(int i=0;i<n;i++){
cin>>a[i];
}
int m;cin>>m;
for(int i=0;i<n;i++){
if(a[i]==m)cul=cul+1;
}
cout<<cul<<endl;
cul=0;
}
}

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