#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 in each box? ";
	int nrowsbl {0};
	cin >> nrowsbl;

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

	cout << "How many columns of blanks in each box? ";
	int ncolsbl {0};
	cin >> ncolsbl;
	
	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) {
			cout << "+";
			for (int x {0}; x < ncolsbl; ++x) {
				cout << "-";
			}
		}

		cout << "\n";
		for (int y {0}; y < nrowsbl; ++y) {
			for (int c {0}; c < ncols; ++c) {
				cout << "|";
				for (int z {0}; z < ncolsbl; ++z) {
					cout << " ";
				}
			}
			cout << "\n";
		}
	}

	return EXIT_SUCCESS;
}