max_size = 10

print(
    "(a)" + " " * (max_size) +
    "(b)" + " " * (max_size) +
    "(c)" + " " * (max_size) +
    "(d)" + " " * (max_size)
    )

for i in range(1, max_size + 1):

    print("*" * i, end = " " * (max_size - i + 3))

    print("*" * (max_size - i + 1), end = " " * (i - 1 + 3))

    print(" " * (i - 1) + "*" * (max_size - i + 1), end = " " * 3)

    print(" " * (max_size - i) + "*" * i)