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: Accepted)

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Aoj_Learning2
{
    class Program
    {
        static void Main(string[] args)
        {
            Aoj_Learning13();
        }

        private static void Aoj_Learning13()
        {
            string[] str = new string[20000];
            int n, q = 0;
            int[] S = new int[10000];
            int[] T = new int[500];
            int count = 0;

            // 数列Sの個数取得
            n = int.Parse(Console.ReadLine());
            // 数列Sを取得
            str = Console.ReadLine().Split(' ');
            for(int i = 0; i < n; i++)
            {
                S[i] = int.Parse(str[i]);
            }
            // 数列Tの個数取得
            q = int.Parse(Console.ReadLine());
            // 数列Tを取得
            str = Console.ReadLine().Split(' ');
            for (int i = 0; i < q; i++)
            {
                T[i] = int.Parse(str[i]);
            }

            // 数列Sを数列Tで線形探索
            for (int i = 0; i < q; i++)
            {
                for(int j = 0; j < n; j++)
                {
                    if(T[i] == S[j])
                    {
                        count++;
                        break;
                    }
                }
            }

            Console.WriteLine(count);
        }
    }
}