thickness = int(input())
if thickness%2 == 1:
  design = 'H'

  # top cone
  for i in range(thickness):
    print((design*i).rjust(thickness-1)+design+(design*i).ljust(thickness-1))
  
  # top pillar
  for i in range(thickness+1):
    print((design*thickness).center(thickness*2)+(design*thickness).center(thickness*6))
  
  # middle belt
  for i in range((thickness+1)//2):
    print((design*thickness*5).center(thickness*6))
  
  # lower pillar
  for i in range(thickness+1):
    print((design*thickness).center(thickness*2)+(design*thickness).center(thickness*6))
  
  # lower cone
  for i in range(thickness):
    print((((thickness-i-1)*design).rjust(thickness)+design+((thickness-i-1)*design).ljust(thickness)).rjust(thickness*6))

else:
  print('enter odd number')