Building

package NestedLoops.Lab;

import java.util.Scanner;

public class building {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        int floors = Integer.parseInt(input.nextLine());
        int apartmentsPerFloor = Integer.parseInt(input.nextLine());
        int floorCounter = floors;
        for (int i = 0; i < floors; i++){
            floorCounter --;
                for (int j = 0; j < apartmentsPerFloor; j++) {
                    if (i == 0) {
                        System.out.printf("L%d%d ", floors - i, j);
                    } else {
                        if (floorCounter % 2 != 0) {
                            System.out.printf("O%d%d ", floors - i, j);
                        } else {
                            System.out.printf("A%d%d ", floors - i, j);
                        }
                    }
                }
            System.out.println();
        }
    }
}