#include <iostream>
#include <vector>
using namespace std;

int main (){
    int x;
    int y;
    int mass;
    int m_sum = 0;
    int x_dop_sum = 0;
    int y_dop_sum = 0;
    int x_sum = 0;
    int y_sum = 0;
    vector <int> sum_po_x;
    vector <int> sum_po_y;
    int n; //кол-во эл в векторе
    cout << "vvedite kol-vo el v vectore: " << endl;
    cin >> n;
       int m;
    cout << "vvedite kol-vo tochek: " << endl;
    cin >> m;

    for (int i = 0; i < m; i++){
        cout << "dlja tochki" << i + 1 << endl;
        int vector_x[n];

        cout << "vvedite x: " << endl;
        for (int j = 0; j < n; j++){
            cin >> vector_x[j];


        }
        int vector_y[n];

        cout << "vvedite y: " << endl;
        for (int j = 0; j < n; j++){
            cin >> vector_y[j];

        }
       int vector_m[n];

        cout << "vvedite m: " << endl;
        for (int j = 0; j < n; j++){
            cin >> vector_m[j];

            m_sum += vector_m[j];
        }

        for (int j = 0; j < n; j++){
            x_dop_sum += vector_x[j] * vector_m[j];
        }
        x_sum += x_dop_sum / m_sum;

        sum_po_x.push_back(x_sum);


        for (int j = 0; j < n; j++){
            y_dop_sum += vector_y[j] * vector_m[j];
        }
        y_sum += y_dop_sum / m_sum;

        sum_po_y.push_back(y_sum);


    }
    cout << "po x: " << x_sum << endl << "po y: " << y_sum << endl;

}