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 Ruby (judge verdict: Wrong Answer)



n = gets.to_i
s = gets.split.map {|v| v.to_i }
q = gets.to_i
t = gets.split.map {|v| v.to_i }

# p s.size
# p t.size

c = 0
t.each do |v|
    c0 = 0
    s.each do |x|
        c0 += 1 if v == x
    end
    c += c0
    # print "#{v}: #{c0} #{c}\n"
end

p c