#include <stdio.h>

int main()
{
	int s,i,n,a[1000],b[1000],k = 0,count;
	while(scanf("%d",&n) != EOF)
	{
		if(n == 0) break;
		count = 0;
		for(i = 0; i < n; i++)
			scanf("%d",&a[i]);
		scanf("%d",&s);
		for(i = 0; i < n; i++)
			if(a[i] == s)
				count++;
		b[k++] = count;
	}
	for(i = 0 ; i < k; i++)
		printf("%d\n",b[i]);
	return 0;
}