while True:
    height = int(input('請輸入三角形的高：'))
    starNumber1 = height * 2 - 1
    print(starNumber1 * '*')
    spaceNumber = 0
    starNumber = 1
    for line in range(2,height*2):
        if line < (height + 1):
            spaceNumber = spaceNumber +1
            starNumber = (starNumber1 - spaceNumber*2
 
)
            print(spaceNumber*' ' + starNumber*'*' + spaceNumber*' ')
        else:
            starNumber = starNumber +2
            spaceNumber = int((starNumber1 - starNumber) / 2)
            print(spaceNumber * ' ' + starNumber * '*' + spaceNumber * ' ')