1329 : 별삼각형3

n = int(input())
if n%2==0 or n<0 or n>100 :
    print("INPUT ERROR!")
    exit()

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