#include <iostream>
#include <stdlib.h>

using namespace std;

int main(int argc, char *argv[]) {
  int **array2d, rows, columns;
  
  cout << "Enter number of rows: ";
  cin >> rows;
  
  cout << "Enter number of columns: ";
  cin >> columns;
  
  array2d = new (nothrow) int*[rows];
  if(array2d == NULL) {
    cerr < "Memory allocation error!\n";
    return -1;
  }
  for(int i=0; i<rows; i++) {
    array2d[i] = new (nothrow) int[columns];
    if(array2d[i] == NULL) {
      cerr < "Memory allocation error!\n";
      return -1;
    }
  }
  
  for(int i=0; i<rows; i++) {
    for(int j=0; j<columns; j++) {
      array2d[i][j] = i+j;
      cout << array2d[i][j] << "  ";
    }
    cout << endl;
  }
  
  for(int i=0; i<rows; i++) 
    delete[] array2d[i];
  delete[] array2d;
}