<gh_stars>1-10
for i in range(1, 6):
    print('★ ', end = ' ')
print(' ')
for i in range(1, 21):
    print('★ ', end = ' ')
print(' ')
for i in range(1, 11):
    print('★ ', end = ' ')

for i in range(1, 6):
    print('★ ', end = ' ')
print(' ')
for i in range(1, 21):
    print('★ ', end = ' ')
print(' ')
for i in range(1, 11):
    print('★ ', end = ' ')