04. Car Number

start_num = int(input())
final_num = int(input())

for i in range(start_num, final_num + 1):
    for k in range(start_num, final_num + 1):
        for j in range(start_num, final_num + 1):
            for x in range(start_num, final_num + 1):
                if (i % 2 == 0 and x % 2 == 1 or i % 2 == 1 and x % 2 == 0) and i > x and (k + j) % 2 == 0:
                    print(f'{i}{k}{j}{x}', end=' ')