#include <iostream>

using namespace std;

int main() {
    setlocale(LC_CTYPE, "");
    int n, m;
    cin >> n >> m;

    int** Mas = new int* [n];
    for (int i = 0; i < n; ++i)
        Mas[i] = new int[m];

    cout << "\n";
    for (int i = 0; i < n; i++)
    {
        for (int j = 0; j < m; j++)
        {
            Mas[i][j] = 20 + rand() % 27 - 35;
        }
    }
    for (int i = 0; i < n; i++)
    {
        for (int j = 0; j < m; j++)
        {
            cout << Mas[i][j] << " ";
        }
        cout << "\n";
    }
    int sum = 0;
    for (int i = 0; i < n; i++)
    {
        for (int j = 0; j < m; j++)
        {
            if(Mas[i][j] > 4)
                sum += Mas[i][j];
        }
    }
    cout << "Сума елементiв бiльших за 4 = " << sum << endl;
    for (int i = 0; i < n; i++)
    {
        for (int j = 0; j < m; j++)
        {
            Mas[n-1][j] = sum;
        }
    }
    for (int i = 0; i < n; i++)
    {
        for (int j = 0; j < m; j++)
        {
            cout << Mas[i][j] << " ";
        }
        cout << "\n";
    }
    for (int i = 0; i < n; i++)
        delete[] Mas[i];
    delete[] Mas;
    return 0;
}