Problem:
Search II

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

Elements in S is sorted in ascending order

n ≤ 100000

q ≤ 50000

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
1 2 3
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 JAVA (judge verdict: Memory Limit Exceeded)

import java.util.Scanner;
import java.util.Arrays;
public class Main{
	public static void main(String[] args){
		Scanner scan = new Scanner(System.in);
		while(scan.hasNext()){
			int n = scan.nextInt();
			String[] s = new String[n];
			for(int i = 0;i < n;i++){
				s[i] = scan.next();
			}
			int q = scan.nextInt();
			long[] t = new long[q];
			for(int i = 0;i < q;i++){
				t[i] = scan.nextLong();
			}
			Arrays.sort(t);
			int count = 0;
			int start = 0;
			for(int i = 0;i < q;i++){
				for(int j = start;j < n;j++){
					if(s[j].equals(t[i]+"")){
						count++;
						start = j;
						break;
					}
				}
			}
			System.out.println(count);
		}
	}
}