[백준] 10996 - 별 찍기 - 21 (파이썬)

N = int(input())

if N == 1:
    print('*')
    
else:
    if N % 2 == 0:
        a = '* ' * (N//2)
        b = ' *' * (N//2)
    else:
        a = '* ' * (N//2) + '*'
        b = ' *' * (N//2)
    
    for i in range(N):
        print(a)
        print(b)