n = int(input())
for i in range(n):
    for j in range(i+1):
        print('*', end='')
    print('')
for i in range(n-1):
    for j in range(n-(i+1)):
        print('*', end='')
    print('')


for i in range(n):
    for j in range(i+1):
        print('*', end='')
    print('')
for i in range(n-1):
    for j in range(i+1):
        print(' ', end='')
    for j in range(n-(i+1)):
        print('*', end='')
    print('')

for i in range(n):
    for j in range(n - i):
        print(' ', end='')
    for j in range(2*i +1):
        print('*', end='')
    print('')
