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# -*- coding:utf-8 -*-

__author__ = 'gjw'

__time__ = '2018/1/8 0008 上午 10:51'

# 题目：打印出如下图案（菱形）:

"""

*

***

*****

*******

*****

***

*

"""

# 程序分析：先把图形分成两部分来看待，前四行一个规律，后三行一个规律，利用双重for循环，第一层控制行，第二层控制列。

import math

r = int(input("打印几(奇数)行的菱形"))

if r%2 == 0:

print("输入必须为奇数")

else:

c = math.ceil(r/2)

f = math.floor(r/2)

for i in range(c):

for j in range(c-1-i, 0, -1):

print(" ", end="")

for k in range(2*i+1):

print("*", end="")

print()

for i in range(f):

for j in range(0, i+1):

print(" ", end="")

for k in range(2*(f-i-1)+1):

print("*", end="")

print()