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 PHP (judge verdict: Wrong Answer)

<?php
$lengthA = (int) fgets(STDIN);
$stdinA = explode(" ",fgets(STDIN));

$lengthKey = (int) fgets(STDIN);
$stdinKey = explode(" ",fgets(STDIN));

$count = 0;

for($j=0; $j<$lengthKey; ++$j){
    $result = linearSearch($stdinA, $stdinKey[$j], $lengthA);
    if($result == 1){
        $count++;
    }
}

echo trim($count), PHP_EOL;

function linearSearch($stdin, $key, $N){
    $i=0;
    while($stdin[$i] != $key){
        $i++;
        // NotFound
        if($i==$N){
            return 0;
        }
    }
    return 1;
}
?>