#include

#define int long long

using namespace std;

const int N = 1e5 +10;

int a[N],b[N],c[N],n,m,sum;

signed main(){

cin>>n;

for(int i = 1;i<=n;i++){

cin>>m;

a[m]++;

}

for(int i = 1;i<=n;i++) cin>>b[i];

for(int i = 1;i<=n;i++){

cin>>m;

sum+=a[b[m]];

}

cout<<sum;

return 0;

}