n=int(input())
n1=n//2
for i in range(-n1,n1+1):
    if(i!=0):
        print("*"*(n1-abs(i)+1),end="")
        for j in range(1,abs(i)*2+1):
            print(" ",end="")
        print("*"*(n1-abs(i)+1),end="")    
        print()
    else:
        print("*"*(n1+1)*2)
/**************************************************************
	Problem: 1247
	User: admin
	Language: Python
	Result: Accepted
	Time:95 ms
	Memory:34480 kb
****************************************************************/