Search - Linear Search

Time Limit : 1 sec, Memory Limit : 65536 KB
Japanese version is here

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

Notes