#n = int(input("n = "))
n = 10
for a in range(n * 2):
    print('o', end='')
print()
for b in range(n - 2):
    print('0', end='')
    for c in range(n - 1):
        print('  ', end='')
    print('0')
for a in range(n * 2):
    print('o', end='')