Scanner s=new Scanner(System.in);
int T=s.nextInt();
while(T–> 0)
{
int n=s.nextInt();
int[] a=new int[n];
for(int i=0;i < n;i++)
{
a[i]=s.nextInt();
}
int k=s.nextInt();
HashMap<Integer,Integer> map=new HashMap<>();
for(int i=0;i < n;i++)
{
map.put(i,a[i]);
}
Arrays.sort(a);
int val=0;
if(map.containsKey(k))
{
val = map.get(k);
}
int count=0;
while(a[count] != val)
{
count++;
}
System.out.println(count);
}
}