题解 | #菱形图案#

while 1:
    try:
        n = int(input())
        n += 1
        for i in range(1,n+1):
            s = '* '*i
            s = s.center(n*2)
            print(s)
        for j in range(1,n):
            s = '* '*(n-j)
            s = s.center(n*2)
            print(s)
    except:
        break