#include <iostream>
using namespace std;


int main() {
    int **a = NULL;
    int *b = NULL;

    int n = 5;
    int m = 10;
    int count = 0;

    a = new int * [n];
    for (int i = 0; i < n; i++) {
        a[i] = new int [m];
        for (int j = 0; j < m; j++) {
            a[i][j] = count++;
        }
    }

    for (int i = 0; i < n; i++) {
        for (int j = 0; j < m; j++) {
            cout << a[i][j] << "\t";
        }
        cout << endl;
    }
    b = (int *)a;
    cout << "Hello: " << a[3][0] << endl;
    cout << "Hello 1: " << b[3] << endl;
    return 0;
}