#include <iostream>
#include <stdio.h>
using namespace std;
const int N = 1000;
int score[N];
int main()
{
int n, grade, cnt;
while(scanf("%d", &n) && n) {
for(int i=0; i<n; i++)
scanf("%d", &score[i]);
scanf("%d", &grade);
cnt = 0;
for(int i=0; i<n; i++)
if(score[i] == grade)
cnt++;
printf("%d\n", cnt);
}
return 0;
}