#include <iostream>
using namespace std;

int main() {
	const int size = 9;
	
	for (int i = 0; i < size; i++) {
		for (int j = 0; j < size; j++) {
			char symbol = (j == i) || (j == size - i - 1) ? 'x' : ' ';
			cout << symbol;
		}
		cout << endl;
	}
	
	return 0;
}