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#include <fstream>
#include <vector>
#define MOD 9013
using namespace std;
ifstream f("dtcsu.in");
ofstream g("dtcsu.out");
int n,nr;
long long x;
vector <long long> H[MOD+2];
int main()
{ for(int i=1;i<=276997;i++)
{ f>>x;
if(x%2==1) H[x%MOD].pushback(x);
}
f>>q;
for(int i=1;i<=q;i++)
{ f>>x;
if(x)
{ while(x%2==0) x/=2;
vector <long long > :: iterator it=L[x%MOD].begin, sf=L[x%MOD].end;
for(;it!=sf;it++)
{ if((*it)==x) nr++;
}
}
}
g<<nr;
return 0;
}