/*
1235 統(tǒng)計(jì)同成績(jī)學(xué)生人數(shù)
Time Limit : 1000 ms  Memory Limit : 32768 K  Output Limit : 256 K

421 MS 184 KB 526 B 
GUN C
*/
#include <stdio.h>

const int NMAX=1000;

int main()
{
    int n,score[NMAX],ca,find,total;
    while(scanf("%d",&n)==1 && n!=0)
    {
        for(ca=0;ca<n;ca++)
        {   scanf("%d",&score[ca]);}
        scanf("%d",&find);   total=0;
        for(ca=0;ca<n;ca++)
        {
            if(score[ca]==find)
                total++;
        }
        printf("%d\n",total);
    }
    return 0;
}