# include <cstdlib>
# include <iostream>

using namespace std;

int main ( )
//
//  MONA_2D reads data from a PGM graphics file of the Mona Lisa.
//  We know in advance that the data consists of 360 rows and 250 columns
//  of integers between 0 and 255.
//
//  The program should be run with commands like:
//
//    g++ mona_2d.cpp
//    mv a.out mona_2d
//    ./mona_2d < mona.pgm
//
//  The program doesn't do anything more than read that data.  The user
//  will want to add statements that modify the data, and perhaps write
//  it back out as a new PGM file.
//
{
  char c1, c2;
  int cols, g_max, i, j, p_num, rows;
  int mona[360][250];
//
//  This part of the code reads some initial data from the graphics file.
//
  cin >> c1;
  cin >> c2;
  cin >> cols;
  cin >> rows;
  cin >> g_max;
//
//  Read the pixel data into the 2D array.
//
  p_num = 0;
  for ( i = 0; i < rows; i++ )
  {
    for ( j = 0; j < cols; j++ )
    {
      cin >> mona[i][j];
      p_num = p_num + 1;
    }
  }
  cout << "\n";
  cout << "Read " << p_num << " pixels from the file.\n";

  return 0;
}