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

int main() {
	
	cout << "How many rows (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 (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 (e.g., 1)?\n";
	int rowBlanks {0};
	cin >> rowBlanks;

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

	cout << "How many columns of blanks in each box (e.g., 3)?\n";
	int columnBlanks {0};
	cin >> columnBlanks;
	
        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 i {0}; i < rowBlanks; i++) {
				cout << "-";
			}

		}	
		cout << "\n";

		for (int c {0}; c < ncols; ++c) {
			cout << "|";
			for (int j {0}; j < columnBlanks; j++) {
				cout << " ";
			}
		}
		cout << "\n";
	}

	return EXIT_SUCCESS;
}