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;

namespace ConsoleApplication3
{


    class Program
    {



        static void Main(string[] args)
        {
            int S,T = 0;
            var result = new List<string>(); 
            
            String Data = Console.ReadLine();
            S = Int32.Parse(Data);
            string[] Smatrix ;
            Data = Console.ReadLine();
            Smatrix = Data.Split(' ');

            Data = Console.ReadLine();
            T = Int32.Parse(Data);
            string[] Qmatrix;
            Data = Console.ReadLine();
            Qmatrix = Data.Split(' ');

            if (S > T)
            {
                for (int i = 0;i < S ;i++)
                    for (int j = 0; j < T; j++)
                    {
                        if (Smatrix[i] == Qmatrix[j])
                        {
                            if(!result.Contains(Smatrix[i]))
                                result.Add(Smatrix[i]);
                        }
                    }
            }
            else
            {
                for (int i = 0;i < T ;i++)
                    for (int j = 0; j < S; j++)
                    {
                        if (Smatrix[i] == Qmatrix[j])
                        {
                            if (!result.Contains(Smatrix[i]))
                                result.Add(Smatrix[i]);
                        }
                    }
            }
            Console.WriteLine(result.Count);

        }
    }
}