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