n = int(input())
i = 1
while i <= n:
    j = 1
    while j <= n - i:
        print(" ",end="")    
        j += 1
    k = 1
    while k <= 2*i-1:
        if k == 1 or k == 2*i-1 or i == n:   
            print("*",end="")
        else:
            print(" ",end="")     
        k += 1
    print("")
    i += 1
/**************************************************************
	Problem: 1225
	User: admin
	Language: Python
	Result: Accepted
	Time:50 ms
	Memory:34480 kb
****************************************************************/