n = int(input())
for i in range(1, n + 1):
    for j in range(1, n + 1):
        if i == 1 or i == n:
            print('*', end='')
        else:
            if j == n - i + 1:
                print('*', end='')
            else:
                print(' ', end='')
    print()
/**************************************************************
	Problem: 1493
	User: admin
	Language: Python
	Result: Accepted
	Time:120 ms
	Memory:34480 kb
****************************************************************/