Problem:
Search I

You are given a sequence of n integers S and a sequence of different q integers T. Write a program which outputs C, the number of integers in T which are also in the set S.

Input

In the first line n is given. In the second line, n integers are given. In the third line q is given. Then, in the fourth line, q integers are given.

Output

Print C in a line.

Constraints

n ≤ 10000

q ≤ 500

0 ≤ an element in S ≤ 109

0 ≤ an element in T ≤ 109

Sample Input 1

5
1 2 3 4 5
3
3 4 1

Sample Output 1

3

Sample Input 2

3
3 1 2
1
5

Sample Output 2

0

Sample Input 3

5
1 1 2 2 3
2
1 2

Sample Output 3

2

Notes

Solution in C# (judge verdict: Wrong Answer)

using System;
using System.Linq;

namespace _4_A
{
    class Program
    {
        static void Main(string[] args)
        {
            int n = int.Parse(Console.ReadLine());
            int[] S = Console.ReadLine().Split().Select(int.Parse).ToArray();
            int q = int.Parse(Console.ReadLine());
            int[] T = Console.ReadLine().Split().Select(int.Parse).ToArray();
            int x = 0;
            for (int i = 0; i < n; i++)
            {
                for (int j = 0; j < q; j++)
                {
                    if (S[i] == T[j])
                    {
                        x++;
                    }
                }
            }
            Console.WriteLine(x);
        }
    }
}