#include <iostream>

#define WINDOW_WIDTH 30
#define WINDOW_HEIGHT 30

using namespace std;


int movementMatrix[WINDOW_HEIGHT][WINDOW_WIDTH];

int main() {

	// bal széle
	for (int i = 0; i < WINDOW_HEIGHT; i++) {
		movementMatrix[i][0] = -1;
	}

	// Belső részen pozitív
	for (int i = 1; i < WINDOW_HEIGHT - 1; i++) {
		for (int j = 1; j < WINDOW_WIDTH - 1; j++) {
			movementMatrix[i][j] = 1;
		}
	}

	// jobb széle
	for (int i = 0; i < WINDOW_HEIGHT; i++) {
		movementMatrix[i][WINDOW_WIDTH - 1] = -1;
	}

	// alsó széle
	for (int i = 0; i < WINDOW_WIDTH; i++) {
		movementMatrix[WINDOW_HEIGHT - 1][i] = -1;
	}

	// felső széle
	for (int i = 0; i < WINDOW_WIDTH; i++) {
		movementMatrix[0][i] = -1;
	}

	// Test
	for (int i = 0; i < WINDOW_HEIGHT; i++) {
		for (int j = 0; j < WINDOW_WIDTH; j++) {
			if (movementMatrix[i][j] == 1) {
				cout << "O";
			}
			else {
				cout << "X";
			}
			//cout << movementMatrix[i][j];
		}
		cout << "\n";
	}

	cin.get();

	return 0;
}