#!/usr/bin/env python3

n = int(input())
k = n
m = n - 1

for i in range(0,m,1):
	print("",end=" ")
m -= 1;

for i in range(0,n,1):
	print("*",end="")
print("")
for i in range(0,n-1,1):
	for j in range(0,m,1):
		print("",end=" ")
	print("*",end="")
	for x in range(0,k,1):
		print("",end=" ")
	print("*")
	k+=2
	m-=1
k-=4
m+=2
for i in range(0,n-2,1):
	for j in range(0,m,1):
		print("",end=" ")
	print("*",end="")
	for x in range(0,k,1):
		print("",end=" ")
	print("*")
	k-=2
	m+=1	
for i in range(0,m,1):
	print("",end=" ")
for i in range(0,n,1):
	print("*",end="")
print("")	


/**************************************************************
	Problem: 1011
	User: admin
	Language: Python
	Result: Accepted
	Time:49 ms
	Memory:34480 kb
****************************************************************/