06. Building

package nestedLoops_Lab;

import java.util.Scanner;

public class Building {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int floors = Integer.parseInt(scanner.nextLine());
        int rooms = Integer.parseInt(scanner.nextLine());

        for (int i = floors; i >= 1; i--) {

            for (int j = 0; j < rooms; j++) {

                if (i == floors) {
                    System.out.printf("L%d%d ",i, j);
                }
                else if (i % 2 == 0) {
                    // четен етаж
                    System.out.printf("O%d%d ",i, j);
                }
                else {
                    // нечетен етаж
                    System.out.printf("A%d%d ",i, j);
                }
            }
            System.out.println();
        }

    }
}