#include <iostream>
#include <cstdlib>
using namespace std;

int main()
{
	//Output graph paper.

	cout << "How many rows of boxes (e.g., 10)? ";
	int nrows {0};
	cin >> nrows;

        if (!cin) {
                cerr << "Sorry, that wasn't a number.\n";
                return EXIT_FAILURE;
        }

	cout << "How many columns of boxes (e.g., 10)? ";
        int ncols {0};
        cin >> ncols;

        if (!cin) {
                cerr << "Sorry, that wasn't a number.\n";
                return EXIT_FAILURE;
        }

	cout << "How many rows of blanks (e.g., 10)? ";
        int nrowsb {0};
        cin >> nrowsb;

        if (!cin) {
                cerr << "Sorry, that wasn't a number.\n";
                return EXIT_FAILURE;
        }

	cout << "How many columns of blanks (e.g., 10)? ";
        int ncolsb {0};
        cin >> ncolsb;

        if (!cin) {
                cerr << "Sorry, that wasn't a number.\n";
                return EXIT_FAILURE;
        }

	for (int r {0}; r < nrows; ++r) {
		for (int c {0}; c < ncols; ++c) {
			//Output a plus, followed by ncolsb dashes.
			cout << "+";
			for (int cb {0}; cb < ncolsb; ++cb) {
				cout << "-";
			}
		}
		cout << "\n";

		for (int rb {0}; rb < nrowsb;  ++rb) {
			for (int c {0}; c < ncols; ++c) {
				//Output vertical bar, followed by ncolsb blanks
				cout << "|";
				for (int cb {0}; cb < ncolsb; ++cb) {
					cout << " ";
				}
			}
			cout << "\n";
		}
	}

	return EXIT_SUCCESS;
}