06. Building

package nestedLoops;

import java.util.Scanner;

public class P06Building {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        int countFloors = Integer.parseInt(scanner.nextLine());
        int countRooms = Integer.parseInt(scanner.nextLine());

        for (int floor = countFloors; floor >= 1; floor--) {
            for (int room = 0; room < countRooms; room++){
                String letter = "";
                if (floor == countFloors){
                    letter = "L";
                    //System.out.printf("L%d%d ", floor, room);
                }else if (floor % 2 != 0) {
                    letter = "A";
                    //System.out.printf("A%d%d ", floor, room);
                } else {
                    letter = "O";
                    //System.out.printf("O%d%d ", floor, room);
                }

                System.out.printf("%s%d%d ", letter, floor, room);
            }
            System.out.println();
        }
    }
}