building

floors = int(input())
rooms = int(input())
for i in range(floors,0,-1):
    for j in range(0,rooms):
        if i == floors:
            print("L{0}{1} ".format(i,j),end = "")
        elif i % 2 == 0:
            print("{O}{1} " .format(i,j),end = "")
        else:
            print(A"{0}{1}".format(i,j),end = "")
    # TODO: print according to floor number
            print("")