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 C (judge verdict: Time Limit Exceeded)

#include<stdio.h>

int main(){
    int i, j, cnt=0;
    int n, q;
    int S[100000], T[50000];

    scanf("%d", &n);
    for(i=0;i<n;i++) scanf("%d", &S[i]);
    scanf("%d", &q);
    for(i=0;i<q;i++) scanf("%d", &T[i]);

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

    printf("%d\n", cnt);

    return 0;
}