width = 11  #注意宽度必须位奇数
for i in range(-width//2,width//2+1):
  prespace=i if i>0 else -i
  print(' '*prespace+'*'*(width-prespace*2))

   *
  ***
  *****
 *******
 *********
***********
 *********
 *******
  *****
  ***
   *

n=int(input(""))
for i in range(2*n+1):
  for j in range(2*n+1):
    if i<=j+n and i>=j-n and i<=3*n-j and i>=n-j:
      print("*",end="")
    else:
      print(".",end="")
  print()

for i in range(2*n+1):
  for j in range(2*n+1):
    if i<=j+n and i>=j-n and i<=3*n-j and i>=n-j:
      print(".",end="")
    else:
      print("*",end="")
  print()