#include <iostream>
using namespace std;

int main()
{
    const int rows = 7;
    const int cols = 28;
    string message = "Display this centered in the box";

    cout << "Here's a " << cols << "x"
         << rows << " rectangle:\n\n";

    // write a nested for loop to generate this output:
    for ( int r = 0 ; r < rows ; r++ )
    {
        for ( int c = 0 ; c < cols ; c++ )
        {
            cout << '+';
        }
        cout << endl;
    }
    //   ++++++++++++++++++++++++++++
    //   ++++++++++++++++++++++++++++
    //   ++++++++++++++++++++++++++++
    //   ++++++++++++++++++++++++++++
    //   ++++++++++++++++++++++++++++
    //   ++++++++++++++++++++++++++++
    //   ++++++++++++++++++++++++++++

    cout << endl;

    // display a hollowed-out box:
    for ( int r = 0 ; r < rows ; r++ )
    {
        for ( int c = 0 ; c < cols ; c++ )
        {
            if ( r == 0  ||  r == rows - 1 ) {
                cout << '+';
            } else if ( c == 0  ||  c == cols - 1 ) {
                cout << '+';
            } else {
                cout << ' ';
            }
        }
        cout << endl;
    }


    return 0;
}