building_2

count_floors = int(input())
count_rooms = int(input())
# Последен етаж
for room in range(0, count_rooms):
    print(f'L{count_floors}{room} ', end='')
print()

for floor in range(count_floors - 1, 0, -1):
    if floor % 2:  # Нечетни етажи
        for room in range(0, count_rooms):
            print(f'A{floor}{room} ', end='')
        print()
    else:
        for room in range(0, count_rooms):
            print(f'O{floor}{room} ', end='')
        print()