Sure, you can simplify this statement to:

```py
elif a[1] in ["3", "4"]
```

This statement checks that the second item of the list `a` is either equal to the string `"3"` or the string `"4"`, which are yielded by the `str` functions above. However, it is possible that these two statements have different performance characteristics depending on the implementation and version of the Python interpreter.
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