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

/**************************************************************
	Problem: 1788
	User: admin
	Language: Python
	Result: Accepted
	Time:125 ms
	Memory:34480 kb
****************************************************************/