in professor problem-set-4 i write the code completly right and my app runs without any problem but check50 gives an error to my code like:
can't check until a frown turns upside down
but my app provide all the specifications in pset.
i didnt share my code because it makes an spoil to the pset
but i can send to any staff member of cs50
```
:) professor.py exists
:) Little Professor rejects level of 0
:) Little Professor rejects level of 4
:) Little Professor rejects level of one
:) Little Professor accepts valid level
:( At Level 1, Little Professor generates addition problems using 0–9
    Did not find "6 + 6 =" in "Level: 7 + 7 =..."
:) At Level 2, Little Professor generates addition problems using 10–99
:) At Level 3, Little Professor generates addition problems using 100–999
:| Little Professor generates 10 problems before exiting
    can't check until a frown turns upside down
:| Little Professor displays number of problems correct
    can't check until a frown turns upside down
:| Little Professor displays EEE when answer is incorrect
    can't check until a frown turns upside down
:| Little Professor shows solution after 3 incorrect attempts
    can't check until a frown turns upside down
To see the results in your browser go to https://submit.cs50.io/check50/2d3fe7692e7f5029b7e891faf1925bfb47920364
professor/ $ ```