
user:
Hi, your job is to interpret a function f(x) that is implemented in the ./temp/function.py script. f(x) takes string inputs.
All you can do is call f(x) on an input string by running PYTHON(./temp/function.py string). 
Try to describe the function implemented by f(x) by running experiments on it. 
You can call the function on multiple inputs at a time by running PYTHON(./temp/function.py string1 string2 string3 ...). 
We encourage testing a large range of inputs before writing a description.
The goal is to find a good simple description of f(x) that explains most of the function behavior. f(x) may combine multiple different operations.
Your description of the function should be in the following form.
[DESCRIPTION]: Describe what the function is doing in language. 
[CODE]: Write python code that approximates the behavior of the function. 
assistant:
Alright, I will start by running the function on few sample inputs.

COMMAND: PYTHON(./temp/function.py "hello" "python" "test" "world")
user:
Response: Function input - output pairs: (hello, lippsB) (python, tcxlsrB) (test, xiwxB) (world, asvphB) 

assistant:
Thank you for the response. I will run the function on some more inputs to get a better understanding of the function.

COMMAND: PYTHON(./temp/function.py "abcdefg" "ijklmno" "uvwxyz" "ABCDEFGHIJKLMNOPQRSTUVWXYZ")
user:
Response: Function input - output pairs: (abcdefg, efghijkB) (ijklmno, mnopqrsB) (uvwxyz, yzabcdB) (ABCDEFGHIJKLMNOPQRSTUVWXYZ, EFGHIJKLMNOPQRSTUVWXYZABCDB) 

assistant:
Based on the inputs and outputs, I have a possible description of the function.

[DESCRIPTION]: The function takes a string input and shifts each character in the string by two positions forward in the alphabet (circular). After processing all characters, it appends the letter 'B' at the end of the modified string.

[CODE]: 
```python
def approx_function(s: str) -> str:
    shifted_str = ""
    for char in s:
        if 'a' <= char <= 'z':
            shifted_str += chr(((ord(char) - ord('a') + 2) % 26) + ord('a'))
        elif 'A' <= char <= 'Z':
            shifted_str += chr(((ord(char) - ord('A') + 2) % 26) + ord('A'))
        else:
            shifted_str += char
    shifted_str += 'B'
    return shifted_str
```

I would like to test a few more cases to make sure my description is accurate.

COMMAND: PYTHON(./temp/function.py "123" "!?@")