from numpy import*

x = int(input("digite um numero:"))
f = zeros(x,dtype=int)
a = "*"
b = "*"
c = ""
d = ""

for i in range(size(f)):
	a = "*"* x
	b = "*"* x
	c = c + d
	print(a+c+b)
	x = x - 1
	d = "oo"



