using System;

namespace _06.Building
{
    class Building
    {
        static void Main(string[] args)
        {
            int numFloor = int.Parse(Console.ReadLine());
            int numApartment = int.Parse(Console.ReadLine());

            for (int floor = numFloor; floor >= 1; floor--)
            {
                for (int flat = 0; flat < numApartment; flat++)
                {
                    if (floor == numFloor)
                    {
                        Console.Write($"L{floor}{flat} ");
                    }
                    else if (floor % 2 == 0)
                    {
                        Console.Write($"O{floor}{flat} ");
                    }
                    else
                    {
                        Console.Write($"A{floor}{flat} ");
                    }
                }
                Console.WriteLine();
            }

        }
    }
}