题解 | K形图案

while True:
    try:
        n = int(input()) + 1
        for i in range(n):
            x = n - i
            for j in range(x):
                print('*',end=' ')
            print()
        for i1 in range(1,n):
            for x1 in range(i1+1):
                print('*',end=' ')
            print()
    except EOFError:
        break