在尝试任务里的代码教学·为什么·我这个会失败

# Enter a code

#指定顺序

ikun = 'Life is {1},you need {0}'

print(ikun.format('short','Python'))

#指定名字

xiao_hei_zi = '{ai} is {yo},{ni} {ga} {ma}'

zhi = 'Life'

yin = 'short'

ny = 'you'

tai = 'need'

mei = 'Python'

print(xiao_hei_zi.format(ai = zhi,yo = yin,ni = ny,ga = tai,ma = mei))

为什么会失败