10/2

#include<iostream>
#include<cmath>

using namespace std;
int kal1(int *u, int n) {

   int p=1;

    for (int i = 0; i < n; i++) {

         p  = p * u[i];

    }
 return p/n;






}


int main()
{

 int n, m;
 cout << "n:";
    cin >> n;

    cout << "m:";
    cin >> m;

 int *u = new int[n];
 int *v = new int[m];

    for (int i = 0; i < n; i++) {

         cin >>u[i];
    }
  for (int i = 0; i < m; i++) {

         cin >>v[i];
    }

    cout << kal1(u,n)-kal1(v,m);




}