n = int(input())
for i in range(n - int(n // 2), 0, -1):
    print("*" * i)
for j in range(2, n - int(n // 2 - 1)):
    print("*" * j)
/**************************************************************
	Problem: 1230
	User: admin
	Language: Python
	Result: Accepted
	Time:103 ms
	Memory:34244 kb
****************************************************************/