[백준] 2444

import sys
n=int(sys.stdin.readline())
for i in range(n-1):
    for j in range(n-i-1): print(" ",end='')
    for j in range(2*i+1): print("*",end='')
    print("")
for i in range(n):
    for j in range(i): print(" ",end='')
    for j in range(2*(n-i-1)+1): print("*",end='')
    print("")