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

int main() {
    int rows, cols;
    int boxWidth, boxHeight;

    // Ask for rows
    cout << "Enter number of rows of boxes: ";
    if (!(cin >> rows) || rows <= 0) {
        cout << "Invalid input. Must be a positive integer.\n";
        return EXIT_FAILURE;
    }

    // Ask for columns
    cout << "Enter number of columns of boxes: ";
    if (!(cin >> cols) || cols <= 0) {
        cout << "Invalid input. Must be a positive integer.\n";
        return EXIT_FAILURE;
    }

    // Ask for box width
    cout << "Enter number of '-' between '+' in each box (box width): ";
    if (!(cin >> boxWidth) || boxWidth <= 0) {
        cout << "Invalid input. Must be a positive integer.\n";
        return EXIT_FAILURE;
    }

    // Ask for box height
    cout << "Enter number of '|' per box (box height): ";
    if (!(cin >> boxHeight) || boxHeight <= 0) {
        cout << "Invalid input. Must be a positive integer.\n";
        return EXIT_FAILURE;
    }

    // Draw the grid of boxes
    for (int r = 0; r < rows; ++r) {
        // Top border of boxes
        for (int c = 0; c < cols; ++c) {
            cout << "+";
            for (int i = 0; i < boxWidth; ++i) {
                cout << "-";
            }
        }
        cout << "+" << "\n";

        // Vertical sides of boxes
        for (int h = 0; h < boxHeight; ++h) {
            for (int c = 0; c < cols; ++c) {
                cout << "|";
                for (int i = 0; i < boxWidth; ++i) {
                    cout << " ";
                }
            }
            cout << "|" << "\n";
        }
    }

    // Final bottom border
    for (int c = 0; c < cols; ++c) {
        cout << "+";
        for (int i = 0; i < boxWidth; ++i) {
            cout << "-";
        }
    }
    cout << "+" << "\n";

    return EXIT_SUCCESS;
}