#include<iostream>
int main() {
	for (int i = 1; i <= 9; i++) {
		std::cout << "1x" << i << std::endl;
	}
	for (int i = 1; i <= 9; i++) {
		std::cout << "2x" << i << std::endl;
	}
	for (int i = 1; i <= 9; i++) {
		std::cout << "3x" << i << std::endl;
	}
	for (int i = 1; i <= 9; i++) {
		std::cout << "4x" << i << std::endl;
	}
	for (int i = 1; i <= 9; i++) {
		std::cout << "5x" << i << std::endl;
	}
	for (int i = 1; i <= 9; i++) {
		std::cout << "6x" << i << std::endl;
	}
	for (int i = 1; i <= 9; i++) {
		std::cout << "7x" << i << std::endl;
	}
	for (int i = 1; i <= 9; i++) {
		std::cout << "8x" << i << std::endl;
	}
	for (int i = 1; i <= 9; i++) {
		std::cout << "9x" << i << std::endl;
	}
}
