#~我又双叒叕来了~
#>_<
#Are you ready?
#Let's have a Python3 trip today!
zuigao = 6*9.6-9.4*5
zuidi = 6*9.6-9.8*5
pingjun = (6*9.6-zuigao-zuidi)/4
print('%.2f'%pingjun)
```
`