#include <stdio.h>
#define N 100000
#define T 50000

main()
{

  int i,j;
  int A[N],B[T];
  int n,t,left,right,mid,key=0;
  
  scanf("%d",&n);
  
  for(i = 0; i < n; i++){
    scanf("%d",&A[i]);;
  }

  scanf("%d",&t);
  
  for(j = 0; j < t; j++){
    scanf("%d",&B[j]);;
  }
  

  
  left = 0;
  right = n;

  while(left < right){
    mid = (left + right)/2;
    
    if(key == A[mid]){
      return mid;
    }

    if(key > A[mid]){
      left = mid + 1;
    }
    
    else if(key < A[mid]){
      right = mid;
    }
  }
  
  
  
  printf("%d\n",mid);

  return 0;
  
}