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;

class Program
{
    static void Main()
    {
        string[] s;

        int n = int.Parse(Console.ReadLine());

        s = Console.ReadLine().Split(' ');
        int[] S = new int[n];
        for (int i = 0; i < n; i++) S[i] = int.Parse(s[i]);
        
        int q = int.Parse(Console.ReadLine());

        s = Console.ReadLine().Split(' ');
        int[] T = new int[q];
        for (int i = 0; i < q; i++) T[i] = int.Parse(s[i]);

        int c = 0;

        for (int i = 0; i < q; i++)
        {
            for (int j = 0; j < n; j++)
            {
                if (T[i] == S[j])
                    c++;
            }
        }

        Console.WriteLine(c.ToString());
    }
}