#include <fstream>
#include <bitset>
#include <cstdio>

using namespace std;

FILE *fin=fopen("dtcsu.in", "r");
FILE *fout=fopen("dtcsu.out", "w");

const int maxb=200000;
int ptr=0;
char buff[maxb];

long long GetLong ()
{
    long long nr=0;

    while (buff[ptr]<'0' || buff[ptr]>'9')
        if ((++ptr)>=maxb)
        {
            ptr=0;
            fread(buff, 1, maxb, fin);
        }

    while (buff[ptr]>='0' && buff[ptr]<='9')
    {
        nr=nr*10+buff[ptr]-'0';
        if ((++ptr)>=maxb)
        {
            ptr=0;
            fread(buff, 1, maxb, fin);
        }
    }

    return nr;
}

const int Mod[5]={666013, 1000003, 826663, 797593, 959473};
const long long MaxV=1LL*1000000000*1000000000;
int Dim[4], Val[5]={15, 3, 5, 7, 11};
long long Pow[4][64];
int N=276997, Q, ANS;
long long X;
bitset<1000010> V[5];

void Add ()
{
    for (int i=0; i<5; i++)
        V[i][X%Mod[i]]=1;
}

bool Query ()
{
    for (int i=0; i<5; i++)
        if (!V[i][X%Mod[i]])
            return 0;
    return 1;
}

int main ()
{
    for (int i=0; i<4; i++)
    {
        Pow[i][0]=1;
        while (Pow[i][Dim[i]]<=MaxV/Val[i])
        {
            ++Dim[i];
            Pow[i][Dim[i]]=1LL*Val[i]*Pow[i][Dim[i]-1];
        }
    }

    for (int i=1; i<=N; i++)
    {
        X=GetLong();
        Add();
    }

    Q=GetLong();

    int P, U, M, Pos;

    for (int q=1; q<=Q; q++)
    {
        X=GetLong();

        if (Query())
        {
            X/=X&(-X);

            for (int i=0; i<5 && X>1; i++)
            {
               while (X==(X/Val[i])*Val[i])
                X/=Val[i];
            }

            if (X<=1)
                ANS++;
        }
    }

    fprintf(fout, "%d\n", ANS);

    fclose(fin);
    fclose(fout);

    return 0;
}