ارسال شماره 40

n = int(input())

for i in range(n):
    for j in range(n):
        if i == 0 or j == 0 or i == n-1 or j == n-1 or i == j or i + j == n-1:
            print('*', end='')
        else:
            print(' ', end='')
    print()